Gas Line Inspections (LL152)

NYC Local Law 152 requires periodic inspections of gas piping systems by a Licensed Master Plumber. Protect your building, your tenants, and stay compliant with expert inspections and GPS filing.

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Licensed Master Plumber

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GPS Filing Included

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4-Year Cycle

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LL152 deadlines are based on your Community District

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Understanding Local Law 152

LL152 was enacted after tragic gas explosions in NYC. It requires periodic inspection of all gas piping systems in buildings.

📋 What's Required

Building owners must have exposed gas piping inspected by a Licensed Master Plumber (LMP) or a qualified individual working under their supervision.

✓ Visual inspection of all exposed gas piping
✓ Check for corrosion, leaks, and damage
✓ Verify proper support and connections
✓ Test gas pressure if issues found
✓ File report via DOB GPS portal

🏢 Who Must Comply

LL152 applies to all buildings in NYC that have gas service, with limited exceptions for small residential properties.

✓ Residential buildings with 3+ units
✓ All commercial buildings
✓ Mixed-use buildings
✓ Industrial buildings with gas service
✓ City-owned buildings

Inspection Cycle by Community District

LL152 inspections are required every 4 years, with deadlines staggered by community district.

Community Districts	Initial Deadline	Next Cycle	Status
1, 3, 10 (all boroughs)	December 31, 2021	December 31, 2025	Current Cycle
2, 5, 7, 13 (all boroughs)	December 31, 2022	December 31, 2026	Upcoming
4, 6, 8, 9 (all boroughs)	December 31, 2023	December 31, 2027	Upcoming
11, 12, 14+ (all boroughs)	December 31, 2024	December 31, 2028	Upcoming

Our Inspection Process

Schedule

Book your inspection. We'll verify your community district and deadline.

Inspect

Our LMP inspects all exposed gas piping per DOB requirements.

Report

Receive detailed findings including any conditions requiring correction.

File

We file the GPS report with DOB on your behalf.

Frequently Asked Questions

What is the penalty for not complying with LL152? +

Failure to file can result in civil penalties of $10,000 or more per inspection period. More importantly, non-compliance puts your building and tenants at risk from undetected gas leaks.

What if the inspection finds gas leaks or issues? +

If the inspector identifies unsafe conditions, they must be reported to the utility company and corrected. The inspector will classify conditions as either requiring immediate correction or correction within 120 days.

Who can perform LL152 inspections? +

Inspections must be performed by a NYC Licensed Master Plumber (LMP) or by a qualified individual working under the direct supervision of an LMP. All our inspectors meet these requirements.

How do I know my building's deadline? +

Your deadline is based on your community district. We can look this up for you when you request a quote—just provide your building address or ZIP code.

Does the inspection include testing? +

The standard LL152 inspection is a visual inspection of exposed gas piping. If issues are identified during the visual inspection, additional testing may be performed. Pressure testing can be added if needed.