What Is GPS2 Gas Piping System Periodic Inspection Certification?
If you own or manage a building in New York City with gas piping, you are required by law to complete a periodic gas piping inspection under NYC Local Law 152 of 2016. One of the key compliance documents tied to this law is the GPS2 Gas Piping System Periodic Inspection Certification.
The GPS2 certification confirms that your building’s gas piping system has been inspected and properly reported to the NYC Department of Buildings (DOB).
What is the GPS2?
GPS stands for Gas Piping System and the GPS2 Periodic Inspection Certification is the official form submitted to the NYC Department of Buildings that certifies:
- A required gas piping inspection was completed
- The inspection results have been correctly categorized as no conditions or conditions are present.
- Indicates the time period to correct the conditions as either 120 or 180 days from the date of inspection.
This certification is required after an inspection is completed as part of Local Law 152 compliance. The inspection entity must provide the GPS2 form to the owner of the building within 30 days of the date of inspection. The GPS2 form must be filed with the Department of Buildings by either the owner, the inspection entity or a third party.
Why GPS2 Certification Is Required in NYC
Local Law 152 was enacted to improve building safety and reduce the risk of gas leaks, fires, and explosions. The law requires regular inspections of exposed gas piping systems in most NYC buildings.
GPS2 certification is how building owners formally notify the Department of Buildings that:
- The inspection was completed on time
- Conditions were evaluated by a qualified professional
- The building is compliant or actively correcting identified issues
Failing to file a GPS2 certification is considered non-compliance with NYC law.
Which Buildings Require GPS2 Certification?
GPS2 certification is required for most NYC buildings that contain gas piping, except:
- One- and two-family homes
- Some other small residential buildings classified under the NYC Building Code
Most multi-family residential buildings, mixed-use properties, and commercial buildings are required to comply.
How the Inspection Process Works
1. Gas Piping Inspection
A required gas piping inspection must be performed by an NYC Licensed Master Plumber as allowed by DOB regulations.
The inspection focuses on exposed gas piping and looks for:
- Leaks
- Corrosion
- Improper installations
- Other unsafe conditions
2. Inspection Findings (GPS1 Report)
After the inspection, an inspection report (GPS1) is prepared documenting:
- Whether conditions are safe
- Any unsafe or hazardous findings
- Required corrective actions, if applicable
3. File the GPS2 Certification
The building owner, the inspection entity or a 3rd party must file the GPS2 Certification with the NYC Department of Buildings within 60 Days after the inspection.
The GPS2 filing certifies one of the following:
- No unsafe conditions were found
- Unsafe conditions were found and corrected
- Unsafe conditions were found and will be corrected within the allowed correction period of 120 or 180 days.and an updated GPS2 certification must be filed once corrections are made.
What Happens If You Don’t File GPS2?
Failure to file a GPS2 certification can result in:
- NYC Department of Buildings violations
- Civil penalties of up to $5,000
- Ongoing compliance issues that can affect building operations, financing, and insurance
Even if no gas issues exist, the certification is still required.
Who Can Perform the Inspection and Certification?
Under NYC regulations, inspections and certifications must be performed or supervised by:
- An NYC Licensed Master Plumber (LMP)
- A qualified employee of a NYC Licensed Master Plumber (LMP)
Why Staying Ahead of GPS2 Matters
Gas safety compliance is not just a filing requirement, it’s a critical part of protecting:
- Tenants
- Employees
- Property assets
- Building owners from liability
Completing inspections early and filing GPS2 certifications on time helps avoid last-minute issues, penalties, and unnecessary stress.
Need Help With Your with the GPS2 Certification process?
KeepMyGas helps NYC property owners and managers navigate:
- Local Law 152 gas piping inspections
- GPS2 certification filing
- Corrective action coordination
- Ongoing gas compliance support
If you’re unsure about your inspection cycle, filing deadlines, or current compliance status, we can help.
Contact KeepMyGas today to schedule your inspection or get guidance on your GPS2 certification.

