Local Law 152 Gas Piping Inspections in NYC: What Building Owners Need to Know

Local Law 152 of 2016 requires most New York City building owners to complete periodic inspections of their gas piping systems and file the appropriate certification with the NYC Department of Buildings (DOB).

If you own or manage a building with or without gas piping, understanding Local Law 152 is critical to staying compliant, avoiding violations, and preventing unnecessary fines.

What Is Local Law 152?

Local Law 152 was enacted to improve building safety across New York City by requiring periodic inspections of exposed gas piping systems.

The law is intended to identify:

• Gas leaks
• Corrosion or deterioration
• Improper installations
• Other conditions that could pose a safety risk

In addition to the inspection itself, Local Law 152 requires that a certification be filed with DOB confirming that the inspection was completed, or that the building is not supplied with gas piping service.

Which Buildings Are Required to Comply?

Most NYC buildings are required to comply with Local Law 152, including:

• Multi-family residential rental buildings
• Condominium and cooperative buildings
• Mixed-use properties
• Commercial buildings, including office, industrial, retail, and hospitality

Certain one- and two-family homes are exempt. Some three-family buildings may also be exempt, but incorrect building classifications are common.

For all other buildings, whether gas is present or not, the law generally applies.
If a building does not contain gas piping, a certification stating that fact is still required.

Inspection Cycles and Subcycles

Local Law 152 inspections are required on a four-year cycle, based on a building’s community district.

Each cycle is broken into subcycles (A, B, C, and D), each with specific inspection windows assigned by DOB. Missing your assigned filing window can result in a Failure to File violation, even if an inspection was completed.

Understanding your building’s assigned cycle and deadline is a key part of compliance.

Date Ranges for Inspection

What Gets Inspected Under Local Law 152?

Inspections focus on exposed gas piping, typically located in:

• Basements
• Boiler rooms
• Mechanical rooms
• Common areas with gas appliances
• Non-residential spaces containing gas appliances (as of 2/22/2026)
• Roof areas with gas utilization equipment

Gas piping concealed behind walls or ceilings is generally not part of the inspection unless it is exposed or otherwise accessible.

All points of entry of gas service into a building must be accessible for inspection, regardless of location.

GPS1 vs GPS2: Understanding the Required Forms

Local Law 152 compliance involves two commonly referenced forms:

• GPS1 – The inspection report prepared by the inspector following the gas piping inspection
• GPS2 – The certification filed with DOB confirming compliance

GPS1 documents the conditions observed during the inspection.
GPS2 is the filing DOB tracks to confirm whether the building has complied.

If GPS2 is missing or improperly recorded, DOB may issue a violation even if the inspection took place.

Filing Deadlines and Penalties

After an inspection is completed, the required certification must be filed within DOB’s specified timeframe.

Failure to file can result in:

• DOB violations
• Civil penalties
• Administrative issues that may affect refinancing, sales, or insurance

Penalties vary based on building classification:

• Three-family residential buildings: up to $1,500
• All other buildings: up to $5,000

DOB Notices vs Conditions to Be Corrected

Not all Local Law 152 notices mean the same thing.

A DOB notice is typically the result of an administrative action, indicating that a required certification is not on record and instructing the owner on next steps.

A GPS2 stating “conditions to be corrected” means physical issues were identified during the inspection and must be addressed.

• The inspection entity must notify the owner within 30 days of the inspection
• GPS2 must be filed within 60 days
• Corrections are typically allowed 120 days, with possible extension to 180 days

Understanding this distinction helps determine the appropriate response.

Buildings Without Gas Piping

Buildings that do not contain gas piping are generally not required to perform an inspection, but they are still required to file a certification stating:

• No gas piping exists, or
• Gas piping exists but the building is no longer supplied with gas

Failure to submit this certification can still result in a violation.

Why Choosing the Right Inspection Entity Matters

Local Law 152 compliance involves more than completing an inspection. Accuracy, documentation, and proper filing are critical.

Key factors include:

• Licensed Master Plumber involvement
• Errors and Omissions insurance for owner protection
• Accurate block, lot, and BIN identification
• Experience with DOB inspection notification requirements
• Familiarity with DOB filing system updates and changes

Mistakes in any of these areas can lead to avoidable violations.

How Keep My Gas Helps

Keep My Gas helps NYC building owners and property managers navigate Local Law 152 from start to finish, including:

• Explaining inspection scope and possible outcomes
• Managing gas piping inspections
• Post-inspection communication and next steps
• Accurate GPS2 certification filing
• Violation review and resolution
• Guidance for no-gas buildings
• Ongoing compliance support

Whether you’re preparing for an inspection, responding to a DOB notice, or unsure of your compliance status, we help guide you in the right direction.

Need Help With Local Law 152?

If you’re unsure about your compliance status or have received a notice from DOB, reach out to Keep My Gas. We’ll review your situation and help you understand the next steps.

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https://www.keepmygas.nyc/property-information/?type=full

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