Local Law 152 of 2016 · 1 RCNY 103-10
Gas Piping Inspections (Local Law 152)
Every NYC building with gas piping must have it inspected by a licensed master plumber once every four years, on a schedule set by community district. Miss the window and the penalty is $10,000.
Who must comply
All buildings except 1- and 2-family homes (occupancy group R-3). Buildings with no gas piping at all must instead file a certification saying so.
Key deadlines
| Inspection + GPS1 filing | By December 31 of your community district’s sub-cycle year (4-year cycles: sub-cycle A/B/C/D by district) |
| GPS2 certification | Within 60 days of the inspection |
| Conditions requiring correction | Corrected within 120 days (180 with extension), then re-certified |
What it costs to miss
A $10,000 civil penalty for failing to file by the deadline, on top of the exposure of running unexpected gas defects — and utilities can require the report before restoring service.
How the schedule works
The city divides community districts into four sub-cycles (A–D). Your building’s sub-cycle repeats every four years — for example, districts in sub-cycle C were due in 2026 and are due again in 2030. A licensed master plumber (LMP) performs the inspection and files the GPS1 report in DOB NOW; any unsafe or hazardous condition triggers immediate notification requirements.
The trap: the GPS2 certification is a separate, second filing due 60 days after the inspection. Owners who complete the inspection but miss the GPS2 still count as non-filers.
Knowing isn’t the hard part. Doing is.
Parcel computes your sub-cycle from your community district automatically, shows it on every building, and reminds you at 30 days, 7 days, and the due date. Need an LMP? The marketplace has vetted, licensed plumbers by borough.
Official source: DOB: Periodic Gas Piping Inspections (LL152)
Current as of September 9, 2026 · last reviewed 2026-08-19. This guide is a summary for owners and managers, not legal advice.