Code: LMP (official acronym)
Description: (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.
Practical Meaning: For a NYC homeowner, this means you must usually hire a person with this license to get plumbing or gas permits, do legal gas piping work, and file many required forms with DOB. If you use someone who is not properly licensed, the city can refuse your permits, fail inspections, issue violations, and you may have to pay again to redo the work.
Where You May See It: You may see this acronym next to a contractor’s name on proposals, invoices, gas inspection reports, and permit applications. It also appears in DOB records, city rules, and LL152 gas inspection information that say which type of professional must perform or supervise the work.
Why It Matters: It matters because only this kind of licensed plumber can pull many plumbing and gas permits and sign key certifications for your building. Hiring the right person helps you avoid unsafe work, violations, and problems with insurance, lenders, and future buyers.