What is Local Law 152?

Local Law 152 of 2016 requires periodic inspections of exposed gas piping systems in covered New York City buildings. The inspection must identify unsafe or hazardous conditions, gas leaks, illegal connections, non-code-compliant installations and other reportable conditions.

The inspection must be performed by a Licensed Master Plumber or by a properly qualified individual working under the direct and continuing supervision of a Licensed Master Plumber.

Which buildings does the law apply to?

Local Law 152 generally applies to all buildings except one- and two-family homes and other buildings classified in Occupancy Group R-3.

Building owners can check whether a property is subject to Local Law 152 and view its filing deadline through DOB NOW’s LL152 Gas Piping System Compliance search.

A covered building must comply even if it does not contain gas piping. In that situation, a certification stating that the building contains no gas piping must be submitted to DOB.

Check a property’s Local Law 152 compliance requirements

When are inspections due?

Inspections must generally be performed once every four years. The applicable inspection year is based on the building’s Community District:

• January 1, 2024 – December 31, 2024 | Districts: 1, 3 and 10 in all boroughs

• January 1, 2025 – December 31, 2025 | Districts: 2, 5, 7, 13, and 18 in all boroughs

• January 1, 2026 – December 31, 2026 | Districts: 4, 6, 8, 9, and 16 in all boroughs 

• January 1, 2027 – December 31, 2027 | Districts: 11, 12, 14, 15, and 17 in all boroughs

• January 1, 2028 – December 31, 2028 | Community Districts 1, 3 and 10 in all boroughs

• January 1, 2029 – December 31, 2029 | Community Districts 2, 5, 7, 13 and 18 in all boroughs

• January 1, 2030 – December 31, 2030 | Community Districts 4, 6, 8, 9 and 16 in all boroughs

• January 1, 2031 – December 31, 2031 | Community Districts 11, 12, 14, 15 and 17 in all boroughs

Covered gas piping systems must generally be inspected once every four years. The applicable year is determined by the Community District in which the building is located.

The inspection must be completed during the applicable calendar year, and the inspection certification must be submitted to DOB within 60 days after the inspection.

Owners who cannot complete the inspection by December 31 of their applicable year may request one 180-day extension through DOB NOW: Safety. The extension request must be submitted in accordance with DOB requirements and is subject to a $35 filing fee.

What if my building is new?

New buildings do not require a Local Law 152 inspection immediately. The first inspection is generally due during the 10th year after the building receives its first temporary, interim or final Certificate of Occupancy from DOB (for example, if DOB issued the building’s first Certificate of Occupancy in 2020, the initial inspection would generally be due during 2030, even if the building’s Community District has a regular inspection cycle in a different year).

After the first inspection, future inspections follow the four-year schedule for the building’s Community District. This new-building provision applies when DOB issued a temporary, interim or final Certificate of Occupancy on or after December 6, 2016.

What if I don’t have a gas piping system?

If a covered building does not contain a gas piping system, the owner must submit a certification stating that the building contains no gas piping.

The certification must be signed and sealed by a Licensed Master Plumber or Registered Design Professional. Under the current rules, a certification may also come from the utility company.

This certification is generally submitted only once. The building will not be subject to further Local Law 152 inspection requirements unless gas piping is later installed.

DOB charges a $375 filing fee for certification that a building contains no gas piping.

What if the building contains gas piping but has no active gas service?

A building that contains gas piping but no longer receives gas service is treated differently from a building that contains no gas piping.

The owner must submit the required owner statement and documentation from the utility company. The utility documentation must identify the last date gas was supplied and the date the building was fully deactivated from utility service.

Documentation of no active gas service must be submitted during every applicable inspection cycle. DOB charges a $480 filing fee for this submission.

What’s the inspection and submission process like?

1. Confirm that the property is covered. Check the building’s Local Law 152 status and applicable deadline using DOB’s compliance search.

2. Schedule the inspection. The inspection must be performed by a Licensed Master Plumber or by a qualified individual working under the LMP’s direct and continuing supervision.

3. Notify DOB at least two days before the inspection. The inspection entity must submit the required inspection notification through DOB NOW: Safety. A cancellation notification must be submitted if the inspection is cancelled.

4. Complete the inspection. The inspector must inspect the required exposed gas piping and conduct the required gas-leak survey.

5. Provide the inspection report. Within 30 days after the inspection, the Licensed Master Plumber must provide the building owner with the Gas Piping System Periodic Inspection Report.

6. Submit the certification. Within 60 days after the inspection, the required certification must be submitted through DOB NOW: Safety. A $35 DOB filing fee applies.

7. Correct reported conditions. If conditions requiring correction are identified, the owner must complete the necessary work and submit the applicable certification of correction within the required period. DOB charges a $35 filing fee for a certification of correction.

Beginning July 27, 2026, Local Law 152 certifications, correction certifications, extension requests, inspection notifications, property-verification requests, unsafe-condition notifications and civil-penalty requests are processed through DOB NOW: Safety. The former GPS2 submission portal is no longer available, and a paper GPS2 is no longer required for new submissions.

Building owners are required to retain the inspection reports for 10 years and the LMP who conducted the inspection should maintain the reports.

Current NYC Department of Buildings filing fees

Submission DOB fee

Periodic gas piping inspection certification $35

Initial or correction extension request $35

Certification of correction $35

Certification that the building contains no gas piping $375

Documentation that the building has no active gas service $480

These are DOB filing fees and are separate from the plumbing company’s inspection, testing, repair or administrative charges.

Who may conduct the inspection?

The inspection may be conducted by a Licensed Master Plumber or by an authorized individual working under the direct and continuing supervision of a Licensed Master Plumber.

An individual performing the inspection under an LMP’s supervision must hold a Journeyman Plumber Registration issued by DOB and must have successfully completed a DOB-approved training program.

What Must Be Inspected?

The inspection covers exposed gas piping from the point where the piping enters the building, including building service meters, and exposed piping in public spaces, hallways, corridors, mechanical rooms, boiler rooms and other required areas inside or outside the building, including rooftops.

The inspection does not include gas piping located inside individual tenant spaces. However, the required gas-leak survey extends along the path of the gas piping and to the entrances of tenant spaces.

What happens if an unsafe or hazardous condition is observed?

If an unsafe or hazardous condition is identified, the Licensed Master Plumber must immediately notify the building owner, the utility company and DOB. The inspector must remain onsite and follow the applicable emergency-reporting procedures.

The building owner must take immediate action to correct the condition in accordance with the NYC Construction Codes, including obtaining any required permits.

LMPs should immediately report such conditions by calling 311 or by contacting the DOB Plumbing Enforcement Unit during regular business hours at (212) 393-2557. For an active gas odor or suspected gas leak, leave the affected area and contact 911 and the gas utility immediately.

What are the penalties for noncompliance?

Failure to submit the required inspection certification by the applicable deadline may result in a $5,000 civil penalty.

To resolve a violation for failure to file, the owner may be required to pay the civil penalty and submit the missing inspection certification through DOB NOW: Safety.

Eligible owners may request a waiver of civil penalties in accordance with DOB requirements. A waiver is not automatic and must be supported by the required documentation.