Modular Buildings

Welcome to the NH State Fire Marshal’s Modular Construction Safety information page. We administer the modular building inspection and certification program, which includes the following functions:

  • Modular manufacturer certification
  • Third party agent certification
  • Modular inspections
  • Modular complaint investigation

Within the modular construction program, manufacturers are approved by the State Fire Marshal’s Office to ensure modular construction is built in accordance with the codes and standards adopted at the state level. Once approved, a NH certification label is issued and affixed to each modular unit, indicating the manufacturer complies with these standards.

The manufacturer must also have an approved third party inspection agency. The third party inspection agency has architects and engineers on staff to review and approve construction plans, as well as inspectors who perform in process inspections of each unit. The State Fire Marshal’s Office audits the third party inspection agencies and manufacturers on an on-going basis to ensure product quality and code compliance.

These procedures are in place to remove the inspection burden from local officials and end users. The presence of New Hampshire modular building labels on the units certify the units meet the codes and standards adopted at the state level.

modular forms and application guidelines 



Applications and and supporting documentation may be emailed or mailed to us. Please mail payments to:

Division of Fire Safety/ State Fire Marshal's Office
NH Department of Safety
33 Hazen Drive
Concord, NH 03305


Need Help?

Please do not hesitate to contact us at (603) 223-4289 or