NYC Violation Codes Hub

A-8 – (DOB Complaint Closure – A-8) is the internal label the Department of Buildings uses when a complaint is closed as redundant or referred to another agency such as HPD.

Access Warrant – (Access Warrant)(informally - Inspection Warrant) is a court order that allows a city inspector to enter a property when the owner or occupants did not give voluntary access after a notice to inspect. This warrant is usually requested for serious safety concerns, such as illegal conversions or dangerous conditions, and may involve NYPD assistance during the inspection.

Accident – (Accident) is the older term for an unplanned event on a construction or demolition site, now replaced in NYC DOB and OSHA rules by the word "Incident." The change was made to reflect that most unplanned events are preventable, not random.

ACM – (Asbestos Containing Materials) are building products that include asbestos fibers and can release dangerous dust when they are damaged, cut, or removed.

ACP-5 – (Asbestos Assessment Report – ACP-5) is a New York City form used by a licensed asbestos investigator to report if asbestos is present and whether the planned work will disturb it. This report confirms either that there is no asbestos in the work area or that any asbestos found is below the city’s action limits and will not be disturbed by the project.

ACRIS – (Automated City Register Information System) is the free NYC online database, managed by the Department of Finance, where anyone can look up property records — including deeds, mortgages, and liens — for properties in Manhattan, Brooklyn, Queens, and the Bronx. Staten Island uses a separate system and is not covered by ACRIS.

Acronym Glossary – (DOB Acronym Glossary – official NYC list of building terms) is an online reference page from the NYC Department of Buildings that groups common acronyms into categories such as work types, permits, building types, professionals, legal terms, and city agencies. It helps owners and readers decode short labels they see on DOB letters, permits, complaints, and OATH summons records.

Active Full SWO – This is a Stop Work Order status where DOB has ordered all construction work at the property to stop, except limited corrective work allowed to fix the violations. Work must not restart until DOB rescinds the order.

Active Partial SWO – This is a Stop Work Order status where DOB has ordered only some types of work to stop at the property, while other work may continue. The restricted work must stay stopped until DOB rescinds the order.

ADA – (Americans with Disabilities Act) is a federal civil-rights law that protects people with disabilities from discrimination and supports equal access to public life. It is an accessibility law, not a DOB violation code or a sidewalk violation notice.

ADU – (Ancillary/Accessory Dwelling Unit) is a self-contained secondary housing unit on the same lot as a one- or two-family house. Accessory Dwelling Unit; City of Yes program for adding a small secondary home on the same lot

AEP – (Alternative Enforcement Program) – This is an HPD program for apartment buildings with extremely serious, repeated housing violations. If your building is placed in AEP, HPD can order emergency repairs, charge heavy fees, and pressure the owner to correct all hazardous conditions quickly.

AEU2 – (Certificate of Correction Form) is the original DOB affidavit form used to certify that all violating conditions on an OATH summons have been corrected. As of DOB NOW implementation, this form is no longer submitted as a separate document; instead, the required information is entered directly into the online Certificate of Correction request.

AEU20 – (Statement in Support of Certificate of Correction) is the notarized statement form that accompanied the AEU2 Certificate of Correction, describing in detail the steps taken to correct violating conditions. Like AEU2, this form is no longer submitted separately; the required statement details are now entered directly into DOB NOW.

AEU3321 – (Certificate of Correction and Statement in Support for Site Safety Training) is a specialized DOB form that combines the AEU2 and AEU20 forms into a single document, used exclusively for correcting summonses related to site safety training requirements under Building Code Sections 3321.1 and 3321.2. This combined form is the only one accepted for site safety training violations; the separate AEU2 and AEU20 forms are not accepted for these violation types.

AEUHAZ – (AEU Hazard Civil Penalty For Missing Certificate Of Correction) is the DOB label used when an acceptable Certificate of Correction was not filed for an underlying Class 1 immediately hazardous summons at a construction site. Underlying Class 1 immediately hazardous summons issued at a construction site.

AEU Unit – (Administrative Enforcement Unit) is the DOB division that reviews and processes correction submissions, penalty waivers, and compliance documentation for OATH summonses. This unit handles all post-summons correction review and approval for NYC building violations.

AHERA – (Asbestos Hazard Emergency Response Act) is a federal law that mainly covers how schools and certain public or commercial buildings handle asbestos. It usually does not apply directly to typical one- or two-family NYC homes, but asbestos rules can still apply under other laws if you renovate or disturb old materials.

AHV – (After Hours Variance) is a DOB permit that allows construction activity before 7:00 a.m., after 6:00 p.m., or on a Saturday or Sunday.

AHW – (After-hours work) is construction activity performed outside normal DOB work hours. It is the work activity, not the DOB permit that authorizes eligible after-hours construction.

ALT-1 – (Alteration Type 1) is a major NYC building alteration that changes the building’s use, egress, or occupancy and requires a new or amended Certificate of Occupancy.

ALT-2 – (Alteration Type 2) is an alteration that does not change the use, egress, or occupancy of the building and does not require a new or amended Certificate of Occupancy

ALT-3 – (Alteration Type 3) A minor alteration that involves only one simple type of work (for example, a small curb cut, limited façade repair, or a temporary fence) and does not change the use, egress, or occupancy of an existing building.

Alteration – (Building alteration) is the DOB term for construction work that changes an existing building, such as layouts, rooms, or systems, without demolishing the whole structure. Many projects that owners call a “renovation” in everyday language are filed with the NYC Department of Buildings as “alterations.

Amended CO – (Amended Certificate of Occupancy) is an updated DOB document that records approved changes to an existing building’s legal use, occupancy, or means of egress. It updates the building’s occupancy record rather than simply confirming that construction work is complete.

Applicant – (Applicant) is the person or licensed professional listed by the NYC Department of Buildings (DOB) as responsible for submitting a specific job filing or permit application. The allowed applicant depends on the work type and filing stage.

Application – (DOB Work Or Permit Application) is a formal request submitted to the NYC Department Of Buildings to review and approve plans or work before a permit is issued or a status is changed. It can cover many things, including building work, changes to an existing job, or other DOB approvals in the same project.

Approval – It usually means that the Department of Buildings has reviewed the filing, found no unresolved objections, and allowed the application or permit to move forward. in simple words approval is the stage when the NYC Department of Buildings reviews a filing or plan and accepts it as compliant enough to move forward.

AR-299 – This is a form used to register large boilers with the NYC Department of Environmental Protection (DEP). If your building boiler is bigger than a certain size, you must file this form and renew it before it expires.

ATR – (Authorization for Temporary Residence) is a temporary housing status that allows people to live in a building for a limited time while safety or code problems are still being corrected. It is usually granted by a city agency after an emergency, major violation, or unsafe condition, so people can stay in the building under specific rules until full compliance is restored.

Attestation – Attestation is a formal statement that the information in a filing is true, correct, or complete to the best of the filer’s knowledge.

Attic – (Attic space under the roof) is the part of a building directly under the roof, usually above the top floor or ceiling of the main living space. Attic renovations in NYC require careful planning due to strict building codes.

B – (Boiler) is the letter code “B” used in NYC DOB records and forms to mark boiler equipment or boiler‑related items in a building. It appears in work types, device IDs, and boiler compliance data rather than as a full word.

B101 - Work without a Permit (Class 1) – It is a formal DOB violation code for doing construction or alteration work without a required permit. It is classified as an immediately hazardous “Class 1” condition.

B201 - work without a Permit (hazardous) – (Work Without a Permit) is the ECB/OATH code used when regulated work was done without a required DOB permit. This means that construction or other regulated work was done without a required permit from the NYC Department of Buildings. It is a Class 2 (hazardous) violation under section 28‑105.1.

B301 – Work Without A Permit (Class 3) – This means that construction or other regulated work was done without a required permit from the NYC Department of Buildings. It is a Class 3 (less hazardous) violation under section 28‑105.1.

BACPP – (Basement Apartment Conversion Pilot Program) is a New York City housing program that offered low or no-interest loans and technical help to certain owners to convert basements or cellars into safe, legal rental apartments in East New York and Cypress Hills, Brooklyn (Community District 5). The program was limited to one- to three-family homes where the owner lived in the building as their primary residence and met income limits.

Balcony – (Balcony) is an exterior platform attached to or projecting from a building and used as outdoor space. It is part of the building exterior and may include railings, guards, structural supports, and an enclosure.

Basement – (Basement) is a story of a building that is partly below street level but has at least half of its clear height above curb level, which is what legally separates it from a cellar. In NYC, the rules for what you can use a basement for — including whether it can be occupied or rented — depend on the building type, ceiling height, ventilation, egress, and what the Certificate of Occupancy says. It is not a cellar.

BBL – Borough, Block, Lot - a 10-digit identifier provided by the Department of Finance to identify a tax lot that contains one or more buildings in NYC. City agencies use it to connect records for taxes, ownership, permits, violations, and building data.

BDM – (Boiler Violation Code – BDM Variant) is a DOB internal boiler code label that appears in some violation lists as a re-ordered form of the BMD boiler code. It refers to the same boiler violation category as BMD and does not change the meaning, penalty, or type of problem noted on the violation.

BIN – (Building Identification Number) is a unique 7-digit number that the NYC Department of Buildings uses to identify each building structure in the city and track all DOB records for that building.

BIS – (Buildings Information System) is the legacy online database of the NYC Department Of Buildings where you can look up property profiles, permits, violations, complaints, and inspections for almost any building in the city. This system is often called BIS or BISWeb and works together with DOB NOW, which handles most new filings.

BMD – (Boiler Violation Code) is a DOB code used in a violation number to identify a boiler-related violation. It is the same boiler category as BDM, a display variant used in some DOB violation lists.

BO9 – DOB Boiler Inspection Report – This is a DOB form used to report the results of the required annual boiler inspection. It must be filed with the Department of Buildings within a set time after the inspection.

BO13 – Boiler Inspection Defect Report and Affirmation of Correction Form. This is a DOB form used to confirm that boiler defects found during an annual boiler inspection have been corrected. It must be filed with the Department of Buildings within a set time after the inspection.

Boiler – Generic term. A boiler is the heating equipment in a building that makes hot water or steam. In New York City, boiler use and maintenance are tied to city rules, inspections, permits, and filing requirements.

Boiler Defect Violation – (Boiler Defect Violation) is a DOB boiler violation issued when a licensed inspector finds a specific unsafe or code-breaking condition on a boiler or its safety equipment during the required annual inspection. All listed defects must be repaired within a set time (usually 90 days from the first inspection), and a follow-up inspection and report must be filed to show DOB that the boiler is now safe and code-compliant.

Boiler Non-Filer Violation – (Boiler Non-Filer Violation) is an administrative DOB violation issued when the required annual boiler inspection report is not filed on time, even if the boiler itself is working normally. This violation usually means the inspection was done between January 1 and December 31, but the report was not submitted in DOB NOW: Safety within the allowed filing and late-filing periods.

Boiler Registration – (Boiler registration) is a required filing with the NYC Department of Environmental Protection (DEP) to report and register certain boilers used in buildings.

Boiler Violation codes – Boiler violation codes are official city code numbers or labels used by NYC agencies to identify boiler-related problems, missing filings, unsafe conditions, or required corrections.

BPP – (Builder’s Pavement Plan) is the plan for building or rebuilding the sidewalk, curb and the narrow strip of roadway in front of a property, following NYC DOT and DOB rules. This is a requirement linked to many New Building and major Alteration jobs before DOB can fully sign off the work.

BSIU – (Buildings Special Investigations Unit). This unit that works with the NYC Department of Investigation. It investigates serious misconduct and safety problems related to construction and people who do business with the Department of Buildings.

C – This single letter is often used in DOB papers to mean “construction” or “construction work.” It appears as a short code in acronyms and plan or work type descriptions.

Canopy – (Canopy Over Sidewalk) is a supported cover placed over a sidewalk, usually at the entrance to a building or business. It is held up by poles embedded in the sidewalk. This entry refers to a DOT sidewalk canopy, not a DOB sidewalk shed.

CATS – (Clean Air Tracking System) - The online portal for submitting boiler registrations, renewals, and related air permit actions. Description: Clean Air Tracking System. An online system used by the NYC Department of Environmental Protection (DEP) to manage air-related permits and registrations, especially for boilers.

CCD1 – Construction Code Determination Form. This is a DOB form used to request an official interpretation or variance of the NYC Construction Codes and related rules. It documents a formal “Construction Codes Determination” request for one specific code issue.

Cellar – (Cellar) is a room or enclosed space in a building where more than one-half of its height is below curb level or grade, usually partly or fully underground. It is not the same as a basement, because a basement has at least half of its height above curb level and is treated as a story, while a cellar is mainly below the street and has much stricter limits for living use.

Certificates – (DOB Certificates) are official documents issued by the NYC Department of Buildings that confirm a building, space, piece of equipment, or licensed individual meets the required standards for occupancy, construction, safety, or professional qualification. There are three main groups: building and project certificates (such as Certificate of Occupancy, Temporary Certificate of Occupancy, Letter of Completion, and Letter of No Objection), equipment and system certificates (such as Certificate of Compliance for boilers, elevators, sprinklers, and other building systems), and professional qualification certificates (such as Certificate of Competence for licensed tradespeople).

Civil penalties – A civil penalty is a money fine issued by a government agency (such as NYC DOB or HPD) for violating a building code, zoning rule, or local law. Civil penalties are separate from criminal charges. They are paid to the city — not to a court — and must be paid before a violation can be closed. The amount depends on the class of violation, the type of building, and whether the offense is a repeat.

Civil Penalty – (Civil Penalty) is money that the NYC Department of Buildings may require a person or business to pay for breaking a building, zoning, or related rule. It is a financial penalty and is not the same as fixing the violation.

Class 1 – Class 1 is the most serious DOB violation class, called “immediately hazardous,” and it means there is an urgent risk to life, health, safety, property, or the public. It usually requires fast correction and can lead to high penalties if you ignore it.

Class 2 – Class 2 is a medium‑level DOB violation class for hazardous conditions that are not “immediately hazardous” but still serious. It usually means you must correct the issue within a set time to avoid extra penalties or enforcement.

Class 3 – Class 3 is the lowest DOB violation class for minor, non‑hazardous conditions that still break the rules but do not create a serious safety risk. It usually involves maintenance or paperwork issues that must be corrected but are not treated as emergencies.

Class A – This is the lowest class of HPD Housing Maintenance Code violation. It means a non‑hazardous problem that still must be fixed but does not create an immediate safety risk.

Class B – HPD Violation – (Class B Housing Maintenance Code Violation) is a hazardous HPD violation level for conditions that affect health or safety but are not immediately life‑threatening, such as many leaks, mold, or missing required devices. It is not a building type on the Certificate Of Occupancy and does not change whether the building itself is Class A or Class B for use and occupancy.

Class B - Building – (Class B Multiple Dwelling Building Type) is a legal building category on the Certificate Of Occupancy for buildings used mainly for transient or rooming‑house type occupancy, such as SROs, rooming houses, or hotels. It is not an HPD violation class and does not by itself mean there is any open hazardous condition in the building.

Class C – This is the most serious HPD Housing Maintenance Code violation. It means an immediately hazardous condition that can quickly harm tenant health or safety.

Class of Violation – A category that shows how serious a DOB or HPD violation is. DOB uses Class 1 (most serious), Class 2 (moderate), and Class 3 (minor); HPD uses Class A (non-hazardous), Class B (hazardous), and Class C (immediately hazardous).

CO – (Certificate of Occupancy). - is a DOB document that officially states what a building or space may legally be used for and confirms that the construction or alteration work meets approved plans and code requirements. It is required when a new building is completed, when an existing building changes its use, or when a major alteration affects the legal occupancy of the space.

COC – This popular three‑letter abbreviation can mean different things in NYC building and housing rules. You should always read the full phrase next to COC to understand which meaning applies in your case.

COC – Certificate of Compliance – (Certificate of Compliance) is the DOB document that confirms specific service equipment — such as a boiler, elevator, sprinkler system, or other regulated building system — was inspected, tested, and approved before it is put into use. It is not a violation correction filing and has nothing to do with a person's professional qualifications; it applies only to equipment and systems.

COC – Certificate of Correction – (Certificate of Correction) is the DOB filing an owner submits to prove that the condition listed in a violation or summons has been fully fixed and checked. It is not an equipment approval document and has nothing to do with a person's professional qualifications; it is the required step to officially close a violation in the DOB or ECB system.

COC - Certificate of Competence – (Certificate of Competence) is a DOB credential that confirms a person has the required experience and has passed the necessary exams to perform a regulated trade or construction-related job in New York City. It describes individual professional qualifications only — it is not an equipment approval document and is not a filing used to close a violation.

Complainant – (Complainant) is the person who reports a problem or unsafe condition to a city agency, such as DOB or HPD, by making a complaint.

Complaint – (Complaint) is a report to a city agency, such as DOB or HPD, about a possible unsafe condition, illegal construction, improper building use, or housing problem. A complaint is not itself a violation, but it may lead to an agency inspection and, if a problem is found, a violation or other enforcement action.

Complaint Closure Codes – (DOB complaint closure codes) are short labels the Department of Buildings uses to show how a complaint was finished in their system, such as closed as resolved, redundant, or referred to another agency.

Complaint Process – (Complaint Process) is the step-by-step way tenants, neighbors, and owners report building problems—such as no heat, leaks, unsafe construction, or illegal conversions—to the city through 311 and related channels. This process can lead to inspections by HPD or DOB, official complaint records in city systems, and possible violations or enforcement actions against the property.

Concrete Spalling – (Concrete spalling) is when pieces of concrete crack, break, or fall off from a wall, balcony, or slab because water, rusting metal, or freezing temperatures have damaged it.

Contractor – (Construction contractor) is a person or company that you hire to do construction, repair, or renovation work on a home or building in New York City. In NYC business guidance, contractors may be licensed by different agencies depending on the role, including DOB for some construction roles and DCWP for Home Improvement Contractors.

Conversion – (Building conversion – change of use or layout) is any change to the way a building or part of a building is used or divided, such as adding or removing dwelling units, changing rooms to apartments, or turning storage or commercial space into living space.

Court order – (Court order) is a written decision or command from a judge that tells a person or company what they must do or must stop doing. In NYC housing and building cases, a court order can require an owner to make repairs, stop harassment, follow a payment plan, or move forward with an eviction or other action.

Curb – (Curb) is the raised edge that separates the roadway from the sidewalk. It is a physical part of the street frontage, not the same as a curb cut or pedestrian ramp.

Dampness – (Dampness) is unwanted moisture in a building area or material, such as a wall, ceiling, cellar, basement, or floor. It may result from a leak, poor drainage, condensation, groundwater, or failed waterproofing.

DCAS – (Department of Citywide Administrative Services) is a New York City agency that manages city property, purchasing, and other government support services. It is usually not the main agency that handles a homeowner’s DOB violation, but you may see it in city records, public building matters, or cross-agency references.

DCVA – (Double-check valve assembly) - is a backflow prevention device that protects the city water supply from contamination. It uses two check valves in series to stop non-potable water or chemicals from flowing backward into the clean drinking water system.

DCWP – (Department of Consumer and Worker Protection). This is the New York City agency that protects consumers, licenses many businesses, and enforces laws that apply to workers and marketplace activity. In 2019, the former Department of Consumer Affairs (DCA) was renamed DCWP.

Deed – (Property Deed) is the legal paper that shows who owns a piece of real estate and transfers that ownership from one person or company to another. It must be written, signed, and recorded in the public records to clearly show the new owner of the property.

Default Judgment – (Default Judgment) is a decision entered when you do not respond to a summons or miss your hearing, and the court or hearing office automatically finds you in violation and imposes the legally required default penalty. In NYC OATH / ECB cases, a default judgment usually means you owe the full maximum fine plus extra default fees and interest.

Demolition – (Demolition) is the removal of all or part of an existing building or building component. In NYC, complete removal of a building requires a Full Demolition job filing and DOB work permit; partial demolition may require an alteration filing and permit.

DEP – (Department of Environmental Protection). It is the city agency responsible for water, wastewater, sewer-related systems, and several environmental rules in NYC.

DEP Triennial – This is a three-year renewal cycle for boiler registration with the NYC Department of Environmental Protection (DEP). Certain boilers must renew their DEP registration and submit a combustion test report every three years through the Clean Air Tracking System (CATS).

Determination Request – (Determination Request) is a formal request for DOB to decide how a Construction Code or Zoning Resolution provision applies to a specific project. When used to challenge a plan-examination objection, it follows a rejected Second Review of Plan Examination Objections; it is not the first objection-review step.

DHCR – NYS (Division Of Housing And Community Renewal) is the state agency that oversees rent regulated housing and many affordable housing programs in New York. It supervises rent control and rent stabilization rules, reviews tenant and owner complaints, and helps support affordable housing across the state.

Diligence Letter – (Diligence Letter) is a written list of questions and document requests that a buyer’s attorney sends in a condo or co‑op purchase to check the legal and financial condition of the apartment and building before contract signing. It is part of the attorney due diligence phase and usually asks about violations, permits, insurance coverage, building finances, repairs, and other risks that could affect the buyer’s decision or price.

Directive 14 – This rule allowes certain professionals to approve their own building applications without waiting for a full review by the Department of Buildings (DOB).

Dismissal Request – (HPD Dismissal Request for Housing Maintenance Code Violations) is a request you file with HPD to send an inspector to verify that old housing violations were corrected so they can be cleared from the record. It is different from a DOB Violation Dismissal Request, which deals with DOB or Unsafe Building violations, and from asking OATH to dismiss a summons.

DIY – (Do It Yourself) refers to construction, repair, or alteration work that a homeowner performs themselves without hiring a licensed professional. In NYC, most construction work requires permits and must be done by licensed contractors, even when the owner does the physical work.

DOB – (New York City Department Of Buildings) is the New York City government agency that enforces building codes and zoning rules, issues permits, and inspects new and existing buildings in the five boroughs. This agency also monitors building safety, responds to complaints and emergencies, and works with other city offices to keep buildings safe for the public.

DOB NOW – (DOB NOW Online DOB Filing and Public Portal) is the NYC Department of Buildings self‑service online system where owners, design professionals, licensees, and contractors do most official business with DOB, including filings, permits, inspections, and license activities. It has a main public search portal and four main work sections called DOB NOW: Build, DOB NOW: Safety, DOB NOW: Inspections, and DOB NOW: Licensing, and it is gradually replacing the older Building Information System (BIS) for many newer records.

DOB NOW: Build – (DOB NOW: Build Online Job Filing Portal) is the NYC Department of Buildings online system used to file construction jobs, permits, and related building documents. It is a web portal where owners and design professionals can submit, update, and track job filings without visiting a DOB office.

DOB NOW: Inspections – (DOB NOW: Inspections Online Inspection Scheduling Portal) is the NYC Department of Buildings online system used to schedule, manage, and track many DOB inspections. It replaces much of the older phone‑based scheduling with web appointments and status updates. DOB NOW has also introduced the separate DOB NOW: Inspections Plus module. As of June 29, 2026, Electrical Development Inspections are requested and managed through Inspections Plus. DOB NOW: Inspections remains the portal for the remaining work types and for Electrical Sign-Off/Occupancy Requests.

DOB NOW: Inspections Plus – (DOB NOW: Inspections Plus) is an NYC Department of Buildings online inspection-management module. It is currently used to request, manage, and track Electrical Development Inspections for applicable electrical filings. Authorized users, such as licensed professionals, property owners, filing representatives, and approved delegates, can use the system to request an inspection or reinspection, check inspection results, review objections, upload documents for eligible certifiable objections, manage delegates, and request certain inspection-related actions.

DOB NOW: Licensing – (DOB NOW: Licensing Online License Application Portal) is the NYC Department of Buildings online system used for license applications, reissuances, and renewals for DOB‑regulated professionals. It lets users submit and manage their license information through the web instead of in person.

DOB NOW: Safety – (DOB NOW: Safety Online Safety and Compliance Portal) is the NYC Department of Buildings online system used for safety and compliance filings, including required reports, fees, and supporting documents. It lets owners and licensed professionals submit and track filings related to building safety rules.

DOB NOW: Training – (DOB NOW Training) is the NYC Department of Buildings’ free training sessions, webinars, presentations, guides, and support materials for using DOB NOW online services. The materials explain topics such as job filings, permits, inspections, certificates of correction, compliance filings, and other DOB NOW processes.

DOB Violations – (DOB Violations) is the general name for violations issued by the New York City Department Of Buildings when a property does not comply with construction codes, zoning rules, or other building laws. These violations are entered in DOB systems such as BIS or DOB NOW and remain on record until the conditions are corrected and properly closed.

DOF – NYC (Department of Finance) - handles property tax bills, tax classes, exemptions, and the ACRIS system for recording deeds and mortgages. If you do not pay your property taxes, water charges, or ECB fines, DOF can place a lien on your property or sell that lien to a private collection company.

DOHMH – (New York City Department of Health and Mental Hygiene) is the city health agency that handles public health, sanitation, and some housing-related health complaints for NYC residents. It investigates conditions that can affect people’s health, such as pests, mold, unsafe food, or other environmental health risks.

DOI – NYC (Department of Investigation) is the City’s independent inspector general. It investigates fraud, corruption, waste, and other misconduct involving City agencies and people who do business with the City.

Dormer – (Dormer) is a small structure that sticks out from a sloped roof, usually with a window, to create more headroom and light in an attic or top floor. It changes the shape of the roof and exterior wall, so it is treated as part of the building’s structure and exterior by DOB and zoning rules.

DOT – (DOT) -Department of Transportation is the New York City agency that manages streets, sidewalks, bridges, traffic, and many permits for work in the public right-of-way.

DPL1 – (Design Professional / Licensee Seal and Signature Form) is a DOB NOW document that captures a licensed professional’s information, professional seal, and signature for use in online filings.

DPR – (Department of Parks and Recreation) is the New York City agency that plans, maintains, and cares for the city’s parks, playgrounds, and many public open spaces used by residents and visitors. It is responsible for street trees, recreation facilities, and other green areas that affect daily life around homes in all five boroughs.

DSNY – NYC Department of Sanitation. This is the city agency that handles trash, recycling, street cleaning, and some sanitation enforcement.

Dwelling – A (dwelling) is a place where people live as their home. It’s any home space meant for living and sleeping, usually with a bathroom and often a kitchen. A dwelling unit just means one separate home inside a building – like one apartment in a multifamily house.

EA – (Earthwork) - This is a work type code used in DOB NOW filings for permits that involve excavation, grading, fill, landscape work, soil improvement, or underpinning. When you file a permit application through DOB NOW, you select EA as one of the work types if your project includes digging, moving soil, or preparing land.

EBC – means NYC (Existing Building Code). It is the set of rules that applies to work on buildings that already exist.

ECB – (Environmental Control Board) is the former New York City tribunal that heard violation cases and fines from agencies like the Department Of Buildings, Fire Department, and Department Of Environmental Protection. This board’s functions are now handled by the Office Of Administrative Trials And Hearings (OATH), but many older violation tickets and letters still use the ECB name.

ECB Violations – (Environmental Control Board violations) are tickets (now called OATH summonses) that tell you to appear in a special city court where a judge decides if you must pay a fine and how much. For homeowners, they usually involve issues like mold or water damage, work without a permit, blocked exits, or missing smoke and carbon monoxide detectors, which can affect health and safety in the building.

eCertification – (HPD eCertification online violation certification) is an online system where registered NYC property owners or managing agents certify that certain HPD violations have been corrected. It is usually an HPD program and not a DOB permit‑filing system. in NYC DOB language usually refers to HPD eCertification, not a DOB permit-filing program. It is an online way for validly registered property owners or managing agents to certify HPD violations, and the property registration must be current.

eFiling – An online system from the NYC Department of Buildings that lets you submit applications and paperwork without going to a DOB office in person.

EHS – (Environmental Health and Safety) - refers to rules and practices that protect people, property, and the environment from hazards. It includes safety procedures, inspections, and compliance with health and environmental laws.

EIFS – (Exterior Insulation And Finish System) - styrofoam stucco, is a non‑load‑bearing exterior wall covering that adds insulation and a protective finish to the outside of a building. It is a multi‑layer system that looks similar to stucco but is built with insulation boards, base coats, and a textured finish.

Electrical Permit – (Electrical Permit) is a DOB permit required for most new electrical installations, alterations, and repairs involving wiring, electrical equipment, or appliances. It is separate from the main construction permit and must be filed by a NYC Licensed Master Electrician.

Elevator inspection and Certificate of Compliance – An (elevator) is a regulated vertical transportation device that must be inspected, tested, maintained, and, when required, approved by the NYC Department of Buildings (DOB). In NYC DOB records, the word “elevator” may refer to the device itself, elevator safety requirements, inspection and test reports, violations, or an Elevator Certificate of Compliance. An Elevator Certificate of Compliance is the DOB certificate that authorizes an elevator to operate after DOB receives a satisfactory inspection and test report. It is commonly associated with a new elevator installation, and it may also be relevant after certain elevator work, testing, or DOB compliance issues.

EPA – (U.S. Environmental Protection Agency) is the federal agency that protects human health and the environment in the United States. It is not a New York City agency, but its rules can affect NYC property owners through requirements for lead paint, drinking water, asbestos, pesticides, and environmental cleanup.

EPR – (Electrical Plan Review) is DOB’s review and approval process for electrical plans for certain electrical installations. It is required when a DOB NOW electrical filing includes service equipment, transformers, UPS systems, generators, other power sources, or energy-storage systems.

ERP – Emergency Repair Program lien is a city tax lien on a building for the cost of emergency repairs made by HPD when the owner did not fix serious violations on time.

EVCAT1 – (Annual elevator test filing violation) is a DOB violation code issued when the required annual Category 1 elevator inspection and test report is not filed. It is the current violation code for this failure-to-file requirement.

EWO – (Emergency Work Order) is a special DOB job type used when work must start immediately to address an unsafe or emergency condition. It allows emergency work to begin right away, but the job filing must be submitted to DOB within a short time after work starts.

Facade – (Facade – building exterior wall) is the outside face of a building, usually including walls, windows, and other visible exterior parts that face the street or open space. It is the part of the building that must be inspected and maintained for safety under NYC facade inspection rules.

FB – (Fuel Burning) is a NYC Department of Buildings work-type label for work involving equipment that burns fuel, such as a heating-system burner. It is listed on the PW1 Plan/Work Application and is associated with the PW1C Schedule C filing.

FC 1027 – (Fire Code Section 1027) is the NYC Fire Code rule that requires all exits, hallways, stairways, and escape routes in a building to be kept clear, unblocked, and usable at all times. It covers exits, exit access paths, and exit discharge areas from any occupied part of a building.

FDNY – (Fire Department Of The City Of New York) is the city agency that provides fire protection and emergency medical services in all five boroughs. It enforces the New York City Fire Code and Fire Department Rules, conducts inspections, and can issue violations when a property is not in compliance with fire safety requirements.

Fence – (Fence) is a barrier installed along a property boundary or around part of a lot to separate spaces, provide privacy, or control access.

FHA – (Federal Housing Administration) is part of the U.S. Department of Housing and Urban Development (HUD). It does not lend money directly, but it provides mortgage insurance on loans made by approved lenders across the United States, including New York City. A U.S. government agency that insures some home mortgages; its rules sometimes affect NYC homeowners and lenders.

Filing Representative – (Filing Representative) is a person registered with the NYC Department of Buildings to present, submit, furnish, or seek approval of construction applications and documents for a project.

Fire Code – (New York City Fire Code) is the City law that sets fire-safety requirements for buildings, businesses, and people in New York City. It includes rules intended to prevent fires and help people leave safely during an emergency.

Fire Door Violation – (Fire Door Violation) is a city enforcement label used when a required fire-rated door, self-closing door, or stair door is not working, blocked, damaged, or missing required safety parts. This label can come from NYC DOB, HPD, or FDNY when a door does not self-close, latch, stay clear, or meet fire-resistance rules and must be repaired to restore code compliance.

Fire Escape – (Fire escape) is an outside metal stair and platform system attached to a building so people can leave safely during a fire or other emergency. It is a secondary way out, usually accessed through windows or doors, that must stay strong, safe, and clear of obstacles at all times.

FISP – (Facade Inspection and Safety Program) is the NYC law, enforced by the DOB, that requires owners of buildings taller than six stories to have their exterior walls and facade inspected by a qualified professional every five years and to file a technical report. Missing the deadline or receiving an Unsafe rating triggers required repairs and may result in fines or violations.

FO – (Foundation) is the part of a building that sits on or in the ground and supports all the weight of the structure above. It spreads the load safely into the soil so the building does not settle, crack, or collapse.

FOIL – (Freedom of Information Law) - It is the law that lets the public request records from NYC or New York State government agencies, including the Department of Buildings.

FPP – (Fire Protection Plan) is the document that shows how a building is protected against fire, including exits, fire walls, fire‑rated doors, and fire safety systems on each floor. This is often required by NYC code for certain buildings before the city issues a Temporary Certificate of Occupancy or a final Certificate of Occupancy.

Front Yard – (Front Yard) is an open area on a zoning lot that extends along the full length of the lot boundary facing a street. A corner lot can have more than one front yard.

FTF-PL-PER – (Failure to File Plumbing Periodic Inspection report); It is a DOB violation for not submitting the required periodic inspection report for a building’s plumbing system. This violation means the owner missed a deadline to file a plumbing inspection report that the city requires.

GC – (General Contractor). This is an abbreviation for a person or company that manages and coordinates construction work for a building project. This person or company must register with the NYC Department of Buildings before getting permits and doing this work legally.

GFCI – (Ground-Fault Circuit Interrupter) is a special type of electrical outlet or breaker that quickly cuts off power when it detects a dangerous difference in current between the hot and neutral wires. It helps protect people from electric shock, especially in wet or damp locations such as bathrooms, kitchens, basements, garages, and outdoor outlets.

GPS1 – This is a DOB form used by a Licensed Master Plumber to report the results of a periodic gas piping system inspection under Local Law 152. It lists the conditions found on exposed gas piping in the building, including any unsafe or abnormal situations.

GPS2 – This is a DOB form used to certify the results of a periodic gas piping system inspection in a building, as required by Local Law 152. It is also used to certify that a building has no gas piping when this is true.

Guardrail – (Guardrail) is a protective barrier installed along the open edge of a sidewalk shed, scaffold, roof, or elevated work area to prevent people, tools, or materials from falling. It is a safety feature, not a walking surface or storage structure. Do not confuse it with a parapet, which is a low wall at the edge of a roof, terrace, or balcony and is not the same as a guardrail.

Gut Renovation – (Gut Renovation) is a major interior construction project where almost all finishes, many systems, and often the layout are removed and rebuilt inside an existing building. It usually takes the space down close to framing and then installs new walls, plumbing, electrical, and other systems.

Habitability – Habitability means that a home (apartment, house, or rental unit) is safe, clean, and fit for people to live in. A place is habitable when it has working heat, hot water, proper plumbing, no dangerous conditions such as mold or pests, and meets the basic standards set by law. In New York State, every landlord must keep a rental unit habitable at all times. This legal requirement is called the Warranty of Habitability (New York Real Property Law §235-b).

HBLVIO – (HBLVIO) means High-Pressure Boiler Violation. It is a NYC Department of Buildings administrative violation generally issued when the required periodic inspection report for a high-pressure boiler was not filed with DOB for the applicable inspection cycle.

HHW – (Heat And Hot Water) is the short label NYC housing agencies use for the basic heat and domestic hot water services that residential building owners must provide to tenants by law, and it is not about hazardous chemical waste. It groups together complaints, inspections, and violations where apartments do not have enough heat during heat season or do not have reliable hot water all year.

HHW – Household Hazardous Waste – (Household Hazardous Waste) is the term environmental agencies use for leftover household products like paints, solvents, chemicals, and some batteries that can be toxic, flammable, corrosive, or reactive, and it is not about tenant heat and hot water service. These products need special handling and must not be thrown into normal trash, recycling, or poured down drains because they can harm people and the environment.

HIC – (Home Improvement Contractor). This is an abbreviation for a person or business that does home improvement work on a house, apartment, or other residential property in New York City. This license is issued by the NYC Department of Consumer and Worker Protection (DCWP), and many jobs may also require permits from the NYC Department of Buildings.

HomeFix – (HomeFix Home Repair Loan Program) is a NYC housing program that gives low- and moderate-income owners of one- to four-family homes low- or no-interest loans to repair and upgrade their homes. It helps owners fix serious repair needs, improve safety, and make energy or resilience upgrades while staying in their homes.

Homeowner Resolution Program – (Homeowner Resolution Program) is a DOB program that may give eligible owners of existing one- and two-family homes time to correct certain conditions before a DOB notice of violation and related penalties are issued. It is a DOB program, not an FDNY program.

HPD – (NYC Department of Housing Preservation and Development) - is the city agency that takes care of housing conditions and affordable housing programs.

HPD inspector – (Housing Preservation and Development inspector) is a city housing inspector who checks apartments and buildings for problems like lack of heat, hot water, pests, leaks, and unsafe conditions under the NYC Housing Maintenance Code and related laws.

HPD Litigation – (HPD Litigation) is the housing court enforcement process used by HPD to seek repairs, compliance, civil penalties, and other court orders. It can also be started by tenants in some cases.

HUD – (U.S. Department of Housing and Urban Development) This is the federal government agency that sets national housing policy, oversees fair housing laws, funds affordable housing programs, and certifies housing counseling agencies such as NHS. It is not a NYC city agency and does not issue DOB or HPD violations directly.

HVAC – It is the short way to say (Heating, Ventilation, and Air Conditioning). It means the equipment in a building that gives heat, cooling, and fresh air to the rooms.

IBC – (International Building Code) is a model building code created by the International Code Council that sets minimum safety and health standards for building design and construction. Many states and cities, including New York, base their own local construction codes on this model and then add their own changes.

Incident – (Incident) is the current NYC DOB and OSHA term for an unplanned event on a construction or demolition site that causes injury, fatality, property damage, or a public safety risk. It replaced the older word "Accident" to emphasize that most such events are preventable and must be reported immediately to the DOB.

Inspector – A DOB inspector is a city employee who visits a property or job site to check whether work or conditions follow NYC building rules. If problems are found, the inspector may issue a violation, objection, or stop-work action. There are several types — DOB, HPD, Special, and Progress

Kitchen – Kitchen is a room used for cooking inside a dwelling unit and is classified as a habitable space under the NYC Housing Maintenance Code and NYC Building Code. It must meet city requirements for light, air, sanitation, and fire safety.

L2 – (Civil Penalty Review Request) is a DOB form and request process used to ask for an override, reduction, or waiver of certain civil penalties for Work Without a Permit or Stop Work Order violations. It is a DOB request used to ask for a review, reduction, waiver, or payment processing of certain civil penalties connected to a work permit or violation. The request is submitted through DOB NOW for eligible BIS or DOB NOW: Build jobs.

LAA – means (Limited Alteration Application). It is a DOB filing for small, limited work on some building systems, not for major construction.

LBLVIO – (Low‑Pressure Boiler Violation) - low boiler report missing.

Legalization – (Legalization): The process of bringing an existing condition, alteration, occupancy, or structure into compliance with New York City construction laws and Department of Buildings requirements, often through permits, plans, inspections, and approvals.

Letter of No Objection – (Letter of No Objection) is an official DOB letter that confirms the legal use of a building when there is no Certificate of Occupancy, usually because the building was constructed before 1938.

Lien – (Lien) is a legal claim or hold against your property because a debt or City charge has not been fully paid. If the lien is not resolved, the person or agency holding it can use it to block, delay, or complicate a sale, refinance, or transfer of the property.

LL5 – Local Law 5 of 1973 is a New York City fire safety law. It requires certain buildings to have fire safety plans, fire drills, and other fire protection measures.

LL10/80 – (Local Law 10 of 1980) was New York City’s original law that required regular professional inspections of street‑facing exterior walls on buildings over six stories and repairs of unsafe conditions. It applied mainly to façades facing the street and later was replaced and expanded by Local Law 11 of 1998 (LL11/98).

LL11 – (Local Law 11 of 1998 ) is a New York City law that requires owners of buildings over six stories to hire a qualified architect or engineer to inspect all exterior walls and façades every five years, file a report with DOB, and repair any unsafe or deteriorated conditions. It replaced and expanded the earlier LL10/80, which only covered street‑facing façades.

LL16/84 – (Local Law 16 Of 1984) is a New York City law that added and strengthened fire safety requirements in certain buildings, including office and other non‑residential occupancies. It requires things like sprinklers, exit lighting, exit and stair signs, fire alarms, communication systems, and fire command stations in buildings that meet its conditions.

LL58/87 – (Local Law 58 of 1987) is a New York City law about making buildings easier for people with physical disabilities to enter and use, not a law about penalties for work without a permit. It added accessibility requirements for certain new buildings and changes to existing buildings.

LL58/88 – (Local Law 58 of 1988) is a New York City law about money an owner may have to pay for building work done without a required permit. It is not the building accessibility law, which is LL58/87.

LL62/91 – Local Law 62 of 1991 [Boiler]

LL126 – (Local Law 126) - Parking Structure and Parapet Safety Requirements, is a NYC law that creates new inspection rules for parking garages and some building parapets. It requires owners to hire qualified professionals to check these structures regularly and to keep written reports and fix unsafe conditions.

LL152 – (Local Law 152) - Periodic Gas Piping System Inspections is a NYC safety law that requires regular inspections of building gas piping by a licensed professional. It sets deadlines, reporting rules, and penalties so that gas piping problems are found and fixed before they become dangerous.

LL157 – (Local Law 157) of 2016 is a New York City law that requires natural gas detecting devices to be installed in most residential buildings with gas service, with detailed rules on where and how these alarms must be installed.

LMP – (Licensed Master Plumber) is a plumber who holds the highest level of plumbing license in New York City, issued by the Department of Buildings. It allows this person to perform, supervise, and certify most plumbing and gas piping work, and to pull permits for that work.

LNO – (Letter Of No Objection) is a DOB document that confirms the current legal use of a building or space when no Certificate of Occupancy exists for that property, often in older buildings built or converted before 1938. It does not approve new work or close a permit; it only states that DOB has no objection to the existing use described in the request based on available records.

LOC – Letter Of Completion – Letter Of Completion (LOC) is a DOB document that officially closes a permitted construction or alteration project when no new or amended Certificate Of Occupancy is required. DOB issues it after all required sign‑offs, inspections, and final filings are accepted in the system.

LPC – This is a New York City agency (Landmarks Preservation Commission) that protects landmark buildings and historic districts and must approve many changes before work starts.

MDL – New York State law (Multiple Dwelling Law) that sets minimum safety, health, and occupancy rules for apartment buildings and other multi-family residential buildings (3 or more units) in New York City. It defines Class A (permanent residences) and Class B (transient, such as hotels and rooming houses) dwellings, each subject to different design, fire safety, and enforcement requirements.

MDV – MDV (Multiple Dwelling Violation) is a general label for violations related to multiple dwelling buildings under the NYC Multiple Dwelling Law and related housing rules. It is not a single specific code number, but a category that covers many different violations affecting multiple dwellings.

Mechanic’s Lien – (Mechanic’s Lien) is a legal claim that a contractor, subcontractor, or supplier can file against your property when they say they were not paid for work or materials that improved the building. This claim attaches to the property title and can lead to a foreclosure lawsuit if the debt is not resolved.

Mitigation procedure – A mitigation procedure is a process used to reduce a problem, risk, or possible loss. In housing or court matters, it often means taking steps to lower damage, avoid foreclosure, or reach a solution before the problem gets worse.

Mold – (Mold problems in a building) are conditions where moisture and water damage allow mold to grow on walls, ceilings, or other surfaces, creating a health and safety risk. These conditions can lead to ECB/OATH violations when a city inspector sees that the owner did not repair leaks, clean up contamination, or keep the building dry and safe.

NB – NB (New Building) is the DOB job type used when you file plans to construct an entirely new building rather than alter an existing one. It is not used when any part of the existing building will remain, which normally requires an Alteration Type 1 or a related category instead.

NBBE – NBBE (New Building with existing elements to remain) is a DOB job type label used when a project is filed as a new building but some parts of the existing structure will remain. It sits under the broader New Building (NB) job family and follows similar rules, but it flags that the filing includes existing elements instead of a completely empty site.

NFPA – (National Fire Protection Association) This is a national nonprofit organization that writes fire safety codes and standards — including those for fuel gas, flammable gases, and related building systems — that New York City adopts into its building and fire codes. NYC buildings must meet these standards when permits are issued or inspections are done.

NHS – (Neighborhood Housing Services) This is a network of HUD-certified nonprofit organizations across New York City that help homeowners, tenants, and buyers with housing counseling, home repair loans, and financial education. NHS is not a city agency — it is an independent nonprofit that works alongside city programs.

Notice of Deficiency – (Notice of Deficiency) is an official DOB notice telling a property owner that the Department found a required filing, certification, or other compliance item missing or deficient. It is not a violation or a summons, but the owner must review the notice and take the stated action by any deadline.

Notice to Inspect – (Notice To Inspect Letter) is a written notice from a city agency asking for access to your property so an inspector can check a reported condition or complaint. This notice usually comes from the NYC Department Of Buildings or another housing agency after someone reports a possible violation or unsafe condition.

NOV – (Notice of Violation) It is an official document sent by a New York City agency to tell a property owner that something on their property may not follow local laws, rules, or safety codes. It usually describes the problem, gives basic instructions or deadlines to fix it, and may lead to hearings and financial penalties if it is ignored.

NRF – (No Report Filed) is a DOB violation code that means the required report was not filed on time, often for façade or boiler inspections. It is not a general “no records found” message in DOB systems.

NYC – (New York City) is the city in New York State where all DOB, HPD, DEP, and related housing rules and violation codes in this glossary apply. It is not a state agency or a building department.

NYC.ID – (New York City Identity) is the free email-and-password account the city requires you to create before you can log in to DOB NOW, BIS Options, and other city online services. It is not a city ID card, a physical document, or proof of residency.

NYCDOC – (New York City Department Of Correction) is the New York City agency that runs the city jail system and related correction functions. It is an agency name, not a DOB violation code or a DOB process term.

NYCEC – (New York City Electrical Code) is the official NYC electrical safety code that controls how wiring, panels, and electrical equipment must be installed and maintained in New York City buildings. It is based on the National Electrical Code with extra New York City rules to protect people and property in dense city buildings.

NYCHA – (New York City Housing Authority) is the city agency that owns and manages public housing developments for low-income residents across the five boroughs. It is not a building inspection or violation enforcement agency for private homeowners.

OATH – (The Office of Administrative Trials and Hearings) is an independent New York City court that handles violation tickets and summonses issued by city agencies such as DOB, HPD, or FDNY. It is not a criminal court — a judge there decides whether a fine is owed and how much.

Objections (DOB) – (DOB Plan Examination Objections) are formal comments or code issues that a DOB plan examiner records against a job filing when the submitted drawings or documents do not meet building code or zoning requirements. No permit can be issued until all objections are resolved, revised, or successfully challenged through a second review.

OP 49 – (Self‑Certification Of Removed, Disconnected, Or Non‑Existing Boiler) is a DOB form used when a boiler has been removed, permanently disconnected, or was never installed, so DOB can close that boiler record and stop future annual boiler inspection penalties.

OP128 – Ordinary Plumbing Work Report. This is a form used by Licensed Master Plumbers to report certain minor plumbing work that does not need a DOB permit.

Order To Repair/Vacate Order – An Order to Repair/Vacate Order is an HPD order that requires an owner to correct dangerous housing conditions and requires occupants to leave a residential unit or building that is uninhabitable. HPD issues it when conditions such as lack of essential services, lack of proper egress, fire damage, or other serious maintenance problems make the property unsafe to live in.

OSHA – (Occupational Safety And Health Administration) is a federal agency that sets and enforces workplace safety and health standards for workers in the United States. It also provides training, guidance, and inspections to help employers keep workplaces safe.

P – (Plumbing) is the DOB violation code used when the violation is related to plumbing systems or plumbing work in a building. It marks the violation number so you know the case is about plumbing, not a general DOB violation or another system like boilers or signs.

PAA – (Post Approval Amendment) is a DOB filing used to change an approved application, approved plans, or approved scope of work after DOB approval. It is required for significant and substantive changes to the approved project.

PACT – (Permanent Affordability Commitment Together) is a NYCHA program that moves participating developments from traditional public housing assistance to project-based Section 8 assistance to fund major repairs and improvements. NYCHA keeps ownership of the land and buildings while private and nonprofit partners carry out repairs and manage the properties.

Parapet Wall – (Parapet Wall) is the part of a building wall that extends above the roof line. It is the wall itself, not the inspection required to check its condition.

PCA – (Property Condition Assessment) is an engineering review of a building’s physical condition, usually done as part of real estate due diligence under the ASTM E2018 standard.

PE – (Professional Engineer). It is a licensed engineering professional who is allowed to design, review, and sign certain technical work in New York.

PE – (Professional Engineer) is a design professional licensed and registered in New York State to provide engineering services and take legal responsibility for engineering plans and documents filed with the Department Of Buildings.

PEO4 – (Form PEO4) is an informational checklist that owners of certain high‑rise office and hotel buildings must complete to show fire and life safety compliance. This checklist supports enforcement of fire alarm, sprinkler, and evacuation requirements under Local Law 5 of 1973.

PER11 – (PER11 Appointment Request Form) is a DOB form used to request an appointment, submit documents, or ask DOB to review certain civil penalty issues. For some work-without-permit cases, it may be used to request the civil penalty amount.

Permit – (Building Permit For Construction Or Alteration Work) is the official approval from the NYC Department Of Buildings that allows you to start specific construction, alteration, or repair work at your property. It is based on approved plans and checks that the work follows NYC building codes, zoning rules, and safety regulations.

Precept – (Precept – Court Order To Make Building Safe) is a special court order that lets the City of New York enter a property and do work to remove unsafe or dangerous conditions. This order is usually used when an owner does not fix serious Unsafe Building or housing code problems and the court authorizes HPD or another agency to repair, seal, or demolish the building.

Pro Cert – (Professional Certification Program) is a NYC Department Of Buildings program that lets a licensed design professional certify that their plans follow all codes and zoning rules instead of waiting for a full DOB plan review. This program is often called “Pro Cert” and is used by Professional Engineers and Registered Architects to speed up permit approvals, but their work can still be audited by DOB.

Progress Inspector – (Progress Inspector For NYC Construction) is a registered design professional or qualified inspector retained by the owner to perform progress inspections that confirm the work, as it moves forward, matches the approved construction drawings and specific code requirements, especially for Energy Code items. This inspector works as an independent professional, not as a DOB employee, and documents required progress inspections on forms such as TR8 so DOB can verify that the as-built conditions follow the plans.

PVB – (Pressure Vacuum Breaker) is a backflow prevention device used to stop contaminated water from flowing backward into the clean city water supply, commonly required on irrigation, sprinkler, and other outdoor water systems. It is a lower-hazard device than an RPZ and is installed and tested by a licensed plumber with results filed with NYC DEP

PW1 – (Plan/Work Approval Application) is the main DOB form used to apply for approval of construction or alteration work on a building before a permit can be issued. It is filed through DOB NOW or at a borough office and must be approved before any permitted work may begin.

PW1B – (Schedule B – Plumbing, Sprinkler, Standpipe) is a DOB schedule attached to the main PW1 form that gives detailed information about plumbing, sprinkler and standpipe work in a project. This is filled out by a licensed professional to show the exact systems, fixtures and piping that will be installed, changed or removed.

PW1C – (Schedule C – Heating and Combustion Equipment) is a DOB schedule attached to the main PW1 form that gives detailed information about boilers, burners, fuel tanks and other heating or combustion equipment in a project. This is filled out by a licensed professional to show fuel type, equipment size and fuel storage details so DOB can review fire safety and code compliance.

PW2 – Work Permit Application (PW2). The DOB form used to request a work permit after a job application is approved.

PW3 – PW3 - (Cost Affidavit) This is a DOB form used to report the estimated cost and final actual cost of permitted construction work.

PW7 – (PW7 Letter of Completion Request Form) is a NYC DOB form used to tell the Department of Buildings that certain permitted construction work is finished and ready for final review. It is mainly used to request a Letter of Completion for eligible jobs.

QEWI – (Qualified Exterior Wall Inspector) is a New York City Department Of Buildings approved design professional who inspects building exterior walls and files facade safety reports under the Facade Inspection Safety Program, formerly Local Law 11. This person must be a New York State licensed Professional Engineer or Registered Architect with specific facade‑inspection experience and must meet DOB qualification rules before they are allowed to submit FISP reports.

RA – (Registered Architect) is a design professional licensed and registered in New York State to provide architectural services and take legal responsibility for building plans and documents filed with the Department Of Buildings.

RCNY – (Rules of the City of New York) are city agency regulations that explain how NYC laws are applied and enforced. They can set detailed requirements for property owners, construction work, inspections, filings, and safety.

REBNY – (Real Estate Board Of New York) is the largest real estate trade association in New York City, representing owners, developers, managers, brokers, and other real estate professionals. It sets industry standards, lobbies on housing policy, and publishes widely used contract forms — including the standard REBNY residential purchase contract used in most NYC co-op and condo transactions.

Renovation – (Interior renovation) is construction work that changes, improves, or repairs part of an existing building, such as rooms, layouts, or systems, without tearing the whole building down. In NYC DOB language, many projects that owners call a “renovation” are actually filed as “alterations” when they need plans, permits, and approvals from the Department of Buildings.

Rescinded SWO – This is a status that shows DOB has lifted a Stop Work Order after the problems were corrected and any required penalties were paid. It means the order is no longer in effect.

Roof – (Roof repair and replacement work) is work done on the roof surface or structure, such as fixing leaks, replacing the roof covering, or rebuilding and enlarging the roof area.

RPIE – (Real Property Income and Expense). It is an annual report that some NYC property owners must file with the Department of Finance to show income and expenses for a property. The RPIE-2025 filing deadline is June 1, 2026.

RPZ – (Reduced Pressure Zone Backflow Preventer) is a mechanical device installed on a water supply line to prevent contaminated water from flowing backward into the clean city water supply, used where there is a higher risk of contamination than a standard PVB or DCVA can handle. It is required by NYC DEP in situations involving higher hazard levels, such as buildings with boilers, chemical systems, or other equipment that could seriously contaminate the public water supply if backflow occurred.

RTE – (Real-Time Enforcement Unit) is a special NYC Department of Buildings enforcement unit that focuses on work without a permit and major alterations in occupied multiple dwellings. It tracks complaints, monitors risky construction, and carries out inspections that can quickly lead to violations or Stop Work Orders.

S – (Sign Violation Code) is the DOB violation code letter used when a building has a problem with a sign — such as a sign installed without a permit, in an unsafe condition, or not meeting NYC sign rules. It is not related to any specific structural or plumbing system and applies only to signage on or attached to the building or property.

SBS – (New York City Department of Small Business Services) is the city agency that helps small businesses with services, guidance, and support. It also appears in city programs and notices related to business help and compliance.

Scaffold – (Scaffold) is a temporary platform made of metal pipes, planks, and safety rails that workers use to reach and work on parts of a building that are high or hard to reach. It is usually built outside along the building walls and may also protect people on the sidewalk from falling materials.

Second Review of Objection – (Second Review of Plan Examination Objections) is the DOB process for asking DOB to reconsider an objection issued during the initial plan examination. It is not a formal Determination Request.

Section 8 – (Section 8 Rental Assistance) is a federal housing assistance program that helps eligible households pay rent. NYCHA administers both tenant-based vouchers for private-market rentals and project-based assistance tied to specific apartments.

SET – (Special Enforcement Team) at DOB - This unit focuses on illegal and unsafe construction, repeat offenders, and complicated enforcement cases.

Sidewalk – (Sidewalk) is the pedestrian area next to a property, generally located between the curb and the property line. In New York City, the owner of an adjoining property is generally responsible for installing, maintaining, and repairing it.

Sidewalk Shed – (Sidewalk Shed) is a temporary protective structure built over a sidewalk to protect pedestrians from falling objects during construction, demolition, facade repair, or other dangerous building work. It is not a storage shed; it is a required safety structure at the building’s street frontage. Do not confuse with a backyard storage shed.

Simulation Game – This is a free browser-based learning game on Iqarius that lets you practice how a real NYC construction project moves from idea to completion. Players manage permits, funding, inspections, and unexpected delays — the same steps that affect real building work in New York City.

Special Inspector – (Special Inspector For NYC Construction) is a qualified design or engineering professional who performs special inspections of specific building components on behalf of a registered Special Inspection Agency, not as an employee of the Department of Buildings. This person checks that selected materials, equipment, installation methods, and structural elements match the approved construction plans and referenced standards required by the NYC Building Code.

SRO – (Single Room Occupancy) is a type of small, low‑cost rental room in a multi‑tenant building where a person rents only one room and usually shares the bathroom, and sometimes the kitchen, with other people on the same floor. This type of housing is normally treated under special rules for Class B multiple dwellings and has extra safety, fire, and habitability requirements in New York City.

ST – (Structural Work Type) is the label the NYC Department Of Buildings uses for permit applications and filings that mainly involve changes to a building’s structural parts, such as beams, columns, slabs, or foundations. It is one of the standard DOB work type codes used in DOB NOW: Build and other DOB systems.

STIPULATION PROCEDURE – A stipulation procedure is the process of making a written agreement in a case, usually in Housing Court. The agreement explains what each side must do, and once it is signed or approved by the court, it can be binding.

Street Opening Permit – (Street Opening Permit) is an NYC DOT permit required for excavation or other work in a city street that disturbs or may damage the street surface. It is different from a DOB building permit, although one project may require permits from both agencies.

Summons – (City Enforcement Summons) is an official notice alleging that a person, owner, contractor, or business violated a city law, rule, or code. A DOB summons is generally handled through an OATH hearing process.

SWARM – (Surface Wall Appraisal and Reporting Management) is the NYC Department of Buildings online system used for filing and managing façade inspection reports under the Facade Inspection Safety Program. It is the digital platform that Qualified Exterior Wall Inspectors and owners use to submit, track, and update required FISP reports and related documents. SWARM (sometimes incorrectly written as SWARMP in third-party articles).

SWO – (Stop Work Order). It is an order from the NYC Department of Buildings that tells a person or contractor to stop construction or renovation work at a property until problems are fixed.

SWS – (Scaffolds And Sidewalk Sheds) is a short label used in DOB safety presentations and job documents for the temporary structures that protect workers and pedestrians during construction or demolition. It usually refers to both work platforms attached to the building and the covered walkway over the sidewalk used as overhead protection.

TCO - Temporary Certificate of Occupancy – (Temporary Certificate of Occupancy) is a DOB document that allows a building or part of a building to be legally occupied while certain construction work or required inspections are still being completed. It has an expiration date — usually every 90 days — and must be renewed until all outstanding work is finished and a final Certificate of Occupancy (CO) can be issued.

Temporary Wall – (Temporary Wall) is a non-permanent partition installed to divide a room or apartment for a limited period. A temporary pressurized wall extends from floor to ceiling, is held by pressure rather than permanently attached, and can be removed without damaging the floor, ceiling, or other walls.

Title Search – (Title Search) is a detailed check of public records to confirm who legally owns a property and to find any liens, judgments, violations, or other problems that could affect that ownership. This check is usually done by a title company or attorney before a sale or refinancing, and the results are summarized in a title report.

TPP – (Tenant Protection Plan) - It is a written safety plan that explains how tenants will be kept safe, healthy, and able to use their apartments while construction or renovation is happening in an occupied building.

TR1 / TR2 / TR8 – NYC forms used for special inspections, progress inspections, and energy code progress inspections.

Transient Use – (Transient use – short‑term occupancy) is a housing term for using a dwelling or building as a temporary place to stay for less than 30 days at a time. It usually means hotel‑style stays instead of permanent residential living.

UB – (Unsafe Building) is the DOB term used for a building, structure, or part of a structure that is considered dangerous to public safety. It can be open, vacant, unguarded, or structurally compromised.

UB/UB*/UB% – (Unsafe Building Violation) is the DOB violation label used when part or all of a building is officially designated unsafe. UB* means the unsafe building violation was dismissed, and UB% means a precept was issued so the city can step in and do emergency work at the owner’s expense.

Underpinning – Underpinning is building work that adds new support under an existing foundation so a building can safely carry loads or sit next to a deep excavation. In NYC it is often required when you dig a deeper cellar or when nearby construction removes soil next to your wall.

Unsafe Building – An unsafe building is a legal emergency because DOB considers the structure dangerous to people or property. It is usually open, vacant, unguarded, or structurally compromised and often has a special UB unsafe building violation.

V/ V*/ V% – DOB Violation. V* means DOB Violation Dismissed. V% means precept issued for U*nsafe Building Violation

VA – (Variance) is a special approval that allows a property or project to differ from a normal zoning or similar land-use rule. It is not a standard DOB violation code, but a planning or filing term you may see when a project cannot fully follow the usual rule.

VAC/ VAC* – VAC = Vacate. VAC* means Vacate Dismissed.

Vacate Order – A Vacate Order is a formal city order that requires occupants to leave a building or part of a building because it is unsafe or illegal to occupy. No one is allowed to live in or use the affected area until the unsafe conditions are corrected and the order is officially lifted.

Variance – (Variance – zoning exception) is a special approval that lets a property use or building design differ from the normal zoning or code rules when there is a real hardship or unique condition on the property. It is not automatic and usually requires a formal application, review, and decision by a city board such as the NYC Board of Standards and Appeals.

Vault – (Sidewalk Vault) is a structure or enclosed space located below a sidewalk, usually connected to the adjoining building. Repair, alteration, or restoration of a building vault requires a NYC DOT permit, and most vault work also requires DOB-approved plans and a DOB permit.

VC – (Violation Category) is an FDNY code label followed by a number that groups a fire-code summons by subject. It is not the full description of the specific condition that the inspector found.

VCLOS/ VCLOS* – VCLOS = Order of Closure (padlock order). VCLOS* means Order of Closure Dismissed.

VECW – (Violation Work Without Permit Elevator) is a DOB violation code used when elevator work was done without the required permit. It is different from the general term Work Without Permit because this code is specifically for elevator-related work.

VEW – Same meaning as VECW: work without permit (elevator). Status: Active violation. Note: VEW* = violation was dismissed (resolved/closed).

VEWL – Violation: Elevator work without permit + lien placed.

VH – (Violation Hazardous) is the Department Of Buildings label for a hazardous building-code violation that can seriously affect safety or stability. (Violation Hazardous Dismissed) is written as VH* and means that this hazardous violation was dismissed by DOB after review or correction.

Violation – (Violation) is an official notice that a property, building, or work does not follow a city rule and must be corrected. NYC agencies such as DOB or HPD use violations to record non-compliance and require action.

VPW – Violation Pending - Work Without a Permit. VPW* means dismissed.

VWH – (Violation – Work Without A Permit Hazardous) is a DOB violation label used when work was done without a required permit and the condition is considered hazardous. This is more serious than a regular “work without a permit” violation because DOB believes the unpermitted work creates an immediate or higher safety risk. VWH* means dismissed.

VWL – Violation Work Without Permit Elevator With Lien is the DOB code used when elevator work was done without a permit and the city has placed a lien on the property. VWL* means the violation has been dismissed.

VWP – Work Without a Permit. DOB internal violation code used in BIS/DOB NOW. Often called “WWP” (Work Without a Permit) in forms and guides.

Wall – (Wall) is a vertical building part that encloses a space, separates rooms, or supports parts of a building. It may be an exterior wall, an interior partition, or a temporary wall intended for later removal.

WWP – WWP is treated here as the general “work without permit” acronym linking to the main DOB violation‑correction guide, not as a single DOB system code; specific codes such as B101 and VWH should keep their own entries and cross‑link to WWP. Confirm that “Permit” and “Stop Work Order” entries list WWP in their Related Terms if helpful.

XRF – (X-ray fluorescence lead paint test) is a non-destructive test that uses a handheld XRF machine to measure how much lead is in painted surfaces in a home. It is the standard method required in NYC for lead-based paint inspections under Local Law 31 and related lead safety rules.

ZD1 – (Zoning Diagram Form) is a Department of Buildings form that shows the zoning bulk, yards, open space, and building height for a proposed project. It must be filed for many New Building and enlargement jobs before DOB will approve the application or issue certain permits.

ZoLa – (NYC Zoning and Land Use Application) is the Department of City Planning’s online map tool for researching zoning and related land-use information in New York City. It is commonly called ZoLa.

Zoning – (Zoning Rules For Land Use And Building Size) is the set of city laws that control how each property in New York City may be used, how big the buildings may be, and where they can be placed on the lot. These rules are collected in the NYC Zoning Resolution, which divides the city into different zoning districts (such as residential R, commercial C, and manufacturing M), each with its own limits on building size, density, and permitted uses.Zoning

ZRD1 – (Zoning Resolution Determination Form). This is a DOB form used to request an official interpretation of how the NYC Zoning Resolution applies to a project. It documents a formal “Zoning Resolution Determination” request about one specific zoning question.

ZV – (Zoning Violation) is a DOB label used when a building, use, or structure does not comply with the New York City Zoning Resolution. This can include problems with building size, height, yard or setback, parking, or the legal use of the property for residential, commercial, or community purposes.

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