Code: Certificate Of Competence (legal requirement)
Description: Certificate Of Competence is a document that shows a person has the required experience and has passed exams to do a regulated job in NYC construction or building work. It describes the person’s professional qualifications, not the condition of a building or a specific violation. If somebody is using letters COC as an abbreviation of this term it can make confusion between ESL readers
Practical Meaning: For a typical NYC homeowner, this term appears indirectly when certain work must be done or supervised by people with special DOB or state qualifications, such as operators of particular equipment or holders of special licenses and certificates. You normally do not file this yourself, but you should make sure that contractors and operators working in your building have the correct licenses or certificates of competence so that DOB accepts their work.
Where You May See It: You may see this phrase in the NYC Administrative Code, in DOB and state rules about licensing and qualification, or in contract documents where a contractor lists their licenses and certificates. You might also see it mentioned on forms and applications for crane operators, elevator personnel, amusement ride inspectors, and other specialized roles that require proof of competence.
Why It Matters: If work is done by someone who does not have the proper license or certificate of competence when it is required, DOB or other agencies can issue violations, stop‑work orders, or reject inspections and permits. Checking that people working on your building have the right qualifications helps you avoid enforcement problems, repeat work, and legal disputes about who was allowed to perform the job.