What Local Law 152 is
Local Law 152 requires periodic inspection of exposed gas piping in many NYC buildings, carried out by a licensed master plumber (or under their direct supervision) and certified to the DOB. It exists to catch gas issues before they become dangerous.
Who has to comply
It applies broadly to buildings with gas piping, on a recurring cycle organized by community district. Certain occupancy types have specific handling. {{VERIFY_CURRENT_CYCLE}} — your community district's deadline determines your year, so confirm it rather than assuming.
What the inspection covers
The inspector checks accessible gas piping for leaks, corrosion, illegal connections and proper support, then documents the condition. Deficiencies must be corrected and certified within the required window.
How DUO handles it
As a licensed plumbing contractor, we perform the inspection, identify any deficiencies, correct them, and file the certification — so compliance is one accountable process, not a referral chain.















