Local Law 152
NYC gas piping inspection requirements for building owners. Understand your obligations, deadlines, and how to stay compliant with periodic gas piping inspections.
What is Local Law 152?
Local Law 152 of 2016 requires all NYC buildings with indoor gas piping to have their gas piping systems inspected by a Licensed Master Plumber (LMP) every four years and file a GPS-2 certification with the NYC Department of Buildings.
Enacted in response to gas-related incidents across the city, the law mandates periodic inspection of all exposed gas piping from the point of entry into the building to each gas appliance connection. Inspectors check for corrosion, leaks, improper connections, illegal installations, and any conditions that could create a hazard.
After inspection, the LMP must file a GPS-2 certification form with the NYC Department of Buildings through the DOB NOW portal, reporting the condition of the gas piping system and any required corrective actions.
Who must comply with Local Law 152?
Local Law 152 applies to all NYC buildings with indoor natural gas piping, including multifamily residential, commercial, and institutional buildings. One- and two-family dwellings (occupancy group R-3) and buildings with no gas service are exempt.
Covered building types include:
- Residential buildings Multifamily apartment buildings, condominiums, and co-ops
- Commercial buildings Office buildings, retail spaces, and mixed-use properties
- Institutional buildings Schools, hospitals, and government facilities
Exemptions: Buildings classified under occupancy group R-3 (one- and two-family dwellings) are exempt from the periodic inspection requirement, per NYC Admin Code §28-318.3. Buildings with no gas service are also not subject to the law.
What does a Local Law 152 inspection include?
A Local Law 152 inspection must be performed by a Licensed Master Plumber (LMP), cover all exposed gas piping from the point of entry to each appliance, sample at least 50% of residential units, and result in a GPS-2 certification filed with the DOB within 60 days of the inspection.
The full inspection scope includes:
- All exposed gas piping from the point of entry to individual appliance connections
- Public spaces, hallways, mechanical rooms, and boiler rooms
- A sampling of at least 50% of occupied apartments/units in residential buildings, or all units if conditions warrant
- Testing for gas leaks using approved leak detection methods
Upon completion, the LMP files a GPS-2 form (Gas Piping System Periodic Inspection Certification) with the DOB through the DOB NOW portal. The certification must be filed within 60 days of the inspection.
If conditions requiring correction are found, the building owner must have repairs completed and submit documentation of the corrective work within 120 days.
When are Local Law 152 inspections due?
Local Law 152 deadlines follow a rolling four-year cycle based on community board districts. Each community board is assigned a specific deadline year, and missing a deadline triggers automatic violation issuance by the NYC DOB.
| Cycle Year | Community Boards |
|---|---|
| Year 1 | Community Boards 1, 3, 10 |
| Year 2 | Community Boards 2, 5, 7, 13 |
| Year 3 | Community Boards 4, 6, 8, 9 |
| Year 4 | Community Boards 11, 12, 14+ |
Check the DOB website or contact KomplyOS for your specific building's deadline based on its community board district. Missing a deadline triggers automatic violation issuance.
What are the penalties for Local Law 152 non-compliance?
Building owners who fail to comply with Local Law 152 face civil penalties starting at $10,000 for the first violation, additional daily penalties for continued non-compliance, DOB violations on the building's public record, potential gas service shutoff, and property liens for unpaid fines.
- $10,000+ civil penalty for failure to file the required GPS-2 certification by the deadline
- Additional daily penalties for continued non-compliance after the initial violation
- DOB violations that become part of the building's public record and can affect property transactions
- Potential gas shutoff if unsafe conditions are identified and not corrected
- Property liens for unpaid fines associated with non-compliance
Beyond financial penalties, non-compliance exposes building owners to significant liability risk in the event of a gas-related incident. Penalties are enforced by the NYC Department of Buildings.
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Frequently Asked Questions
Who needs to comply with Local Law 152?
All buildings in New York City with indoor natural gas piping must comply with Local Law 152, except for buildings classified in occupancy group R-3 (one- and two-family dwellings). This includes residential, commercial, and mixed-use buildings.
How often are gas piping inspections required?
Gas piping inspections under Local Law 152 are required every four years. The inspection cycle is based on community board districts, with different districts having different deadline years.
Who can perform a Local Law 152 inspection?
Inspections must be performed by a Licensed Master Plumber (LMP) or an individual working under the direct and continuing supervision of an LMP. The inspector must hold a current, valid license issued by the NYC Department of Buildings.
What is the GPS-2 form?
The GPS-2 (Gas Piping System Periodic Inspection Certification) is the official DOB form that must be filed after completing a Local Law 152 inspection. It certifies that the gas piping system has been inspected and documents any conditions found, including whether the system passed or requires corrective action.
What are the penalties for non-compliance with Local Law 152?
Building owners who fail to comply with Local Law 152 face civil penalties starting at $10,000 for the first violation, with additional daily penalties for continued non-compliance. The DOB can also issue violations that may result in liens on the property and potential gas service shutoff for unsafe conditions.
Related Compliance Guides
Your First LL152 Inspection: Step-by-Step
A practical walkthrough of what to expect on inspection day, how to prepare your building, and tips from experienced property managers.
LL152 Inspection Costs
How much a Local Law 152 inspection costs and how to budget.
LL152 Deadlines by Community Board
Find your building's inspection deadline and filing schedule.
LL152 Licensed Plumber Requirements
Who can perform inspections and how to verify credentials.
NYC Compliance Calendar
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