An inspection of a building’s gas piping system shall be conducted at periodic intervals as set forth by rule of the commissioner, but such inspection shall be conducted at least once every five years.


1. If the New York state public service commission adopts a rule or other requirement for periodic inspections of service lines, as defined in section 255.3 of title 16 of the New York codes, rules and regulations, with a frequency other than five years, the commissioner may, by rule, require that the periodic inspections required by this article be conducted with such frequency.

2. The initial inspection for a new building shall be conducted in the tenth year after the earlier of (i) the issuance by the department of a letter of completion or, if applicable, a temporary or final certificate of occupancy for such building or (ii) the date such building was completed as determined by department rule.