Local Law 152 — Gas Piping Periodic Inspection

Who is covered

All buildings in New York City except those classified solely as R-3 occupancies (one- and two-family dwellings). This covers residential apartment buildings, commercial offices, mixed-use buildings, schools, hospitals, and industrial properties.

What the law requires

• Hire a Licensed Master Plumber (LMP) to inspect all exposed gas piping in the building.
• The LMP must submit the inspection results to DOB through the DOB NOW system.
• If gas leaks or unsafe conditions are discovered, the building must immediately report them to National Grid or Con Edison and begin remediation.
• Buildings with no gas piping must file a No Gas Piping certification.

Filing frequency and deadlines

Penalty structure

Non-compliance with LL152 can result in the following penalties:

• $10,000 for the first failure to file within the prescribed period.
• $25,000 for subsequent violations.
• DOB-issued Notices of Deficiency for missing or incomplete filings.

Exemptions

• Buildings classified solely as R-3 occupancy (one- and two-family dwellings).

Recent updates and amendments

DOB has accelerated enforcement following several gas-related building explosions. The inspection scope was clarified to include all exposed and accessible piping — concealed piping behind walls is not included unless visible through access panels.

Reference

Official source: NYC DOB — LL152 Gas Piping