Local Law 152: Periodic Inspections of Gas Piping Systems

September 27, 2021

Local Law 152 was created to protect occupants and the public from gas leaks and explosions.


  • Visual Inspection by DOB Registered Licensed Master Plumber
  • Date ranges for inspections in table below
  • HLZAE Provides pre-inspection services to identify any issues that may cause failure of certification
  • Filing of inspection certification by Master Plumber
  • Repairs must be made within 120 or 180 days based on request made by Master Plumber
  • Failure to certify inspection within timeframes allotted will result in $10,000 fine

Beginning January 1, 2020, gas piping systems in all buildings, except for one- and two-family homes, and other buildings classified in occupancy group R-3, must be inspected by a Licensed Master Plumber, or a qualified individual working for a Licensed Master Plumber. Gas piping systems must be inspected at least once every four years according to the schedule below.

This inspection requirement applies to all buildings, except to one- and two-family homes, and other buildings classified in occupancy group R-3. If the inspection requirement does not apply to a building based on its occupancy group classification, no further action is necessary.

Date Range for Inspection Buildings in Community Districts
January 1, 2020 – December 31, 2020* 1, 3 and 10 in all boroughs
January 1, 2021 – December 31, 2021* 2, 5, 7, 13 and 18 in all boroughs
January 1, 2022 – December 31, 2022* 4, 6, 8, 9 and 16 in all boroughs
January 1, 2023 – December 31, 2023* 11, 12, 14, 15, 17 in all boroughs

* And no later than December 31 within every fourth calendar year thereafter

Failure to file a Gas Piping System Periodic Inspection Certification by the applicable due date may result in a civil penalty of $10,000.


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