Updated 5/20/2026
FAQs on the Gas Operator Qualification Membership Program
Utility FAQs on CT87
FAQs on LL152/2016 (Periodic Inspections of Building Gas Piping)
NYC DOB FAQs on LL152/2016
LL152 Inspection Guidance 2026 (MPC)
Access to Con Ed’s Yellow Book
Access to National Grid’s Gas Specifications (including Blue Book)
Plumbers Gas Law Requirements Flow Chart