Regulatory framework
The code baseline for Coos County.
New Hampshire state baseline under RSA 155-A: 2021 IBC, IEBC, IPC, IMC, ISPSC, and IRC; 2018 IECC; 2023 NEC; and state-approved amendments. Local permitting and enforcement are municipality-specific.
Inspection lane
Contact the town or city building official for the property location. Under RSA 155-A, local enforcement agencies handle plan review, permit issuance, inspections, and occupancy; where no local mechanism exists, the state fire marshal may enforce on written municipal request.