833-632-2855

Colorado fire code

Colorado's fire code changes depending on where your building sits, since no one fire code covers every building in the state. State-supervised buildings use the 2021 International Fire Code, while most other buildings follow rules set and enforced by their own city or district. Not sure which code applies to your building? Call us before work begins, and we'll help you identify the rules to check.

Code in force: 2021 IFC for buildings under state oversight. Enforced by: Division of Fire Prevention and Control. Your local fire marshal can add rules, so check with that office too.

  • code for buildings under state oversight 2021 International Fire Code
  • adopts and enforces local fire codes Local city or district
  • plan review cutoff for earlier state codes 1 July 2021

Asking about a house? For a house or duplex, smoke alarm and sprinkler rules usually come from the residential building code (the IRC) instead, so ask your local building department.

Which fire code covers your building?

There is no single statewide fire code in Colorado. Instead, local jurisdictions pick and enforce their own. Many may amend the state code or take on a different one, provided it is at least as strict. This is why the rules in your city matter first.

Colorado's Division of Fire Prevention and Control looks after the property, buildings, and structures that state law places under its authority (Section 44-30-515, C.R.S.). Under rule 8 CCR 1507-101, it puts codes in place as minimum standards.

Wall-mounted fire extinguisher with its inspection tag, the kind checked under the Colorado fire code

Code editions adopted by the state

The division has put three 2021 codes in place for state-overseen buildings: the International Fire Code, the International Building Code, and the International Wildland-Urban Interface Code. That third one applies where buildings meet wildland. Anything sent in for plan review before 1 July 2021 gets reviewed under the codes that were in place before then.

A few building types still follow older editions. Public schools, junior colleges, and gaming facilities use the 2006 International Fire Code. Licensed health care facilities use the 2012 edition. Code source

Fire code and fire watch rules in Thornton

Thornton goes further than the state. It enforces the 2024 International Fire Code with its own local changes to both the fire and building codes, and its Fire Prevention Division handles enforcement. Thornton has also taken on the 2025 versions of NFPA 13 and NFPA 72, the nationwide standards covering sprinkler systems and fire alarms.

  • Alarm systems require separate permits.
  • You can't send in parts of the plans later; deferred submittals are not accepted.
  • A NICET Level III or IV technician, a professional engineer, or someone with another approved credential must sign the plans. NICET is the national certifying body for fire protection technicians.

Thornton businesses get a routine fire safety survey, either every year or every other year. Thornton tracks code compliance reports online through the Brycer Compliance Engine. If a system stays out of service past 4 hours, you must arrange a fire watch. Thornton details

Colorado fire suppression contractor registration

Under 8 CCR 1507-11, contractors who install fire suppression systems must register with the state. Registrations run out on 31 December, with renewals open from 1 December. A late renewal filed from 30 January to 1 March carries a $125 fee. When an application has deficiencies, the applicant gets 30 days to fix them.

To register, you must carry $1 million or more in general liability insurance. Firms doing commercial, civil, or residential work must name a responsible employee who is NICET III or IV certified, is a licensed professional engineer, or holds a Colorado registered sprinkler fitter credential. For backflow work, firms name an employee certified through ASSE, ABPA, or ABC. Premanufactured building contractors need a registered sprinkler fitter on staff. Underground registration covers supply lines that run from the public water main to the system risers. State details

Call us before work starts, and we'll help you check that the contractor on your job is properly registered with the state.

Vail contractor credentials

Starting 1 January 2025, the Town of Vail makes fire protection contractors meet minimum qualifications before they can apply for a Fire Contractor's Registration. This applies to sprinkler, alarm, and suppression work, plus emergency responder radio systems.

  • Registrations for sprinkler, alarm, suppression, and radio systems run for 2 years, and credentials must be refreshed each year.
  • Registration for mobile food vehicle contractors is good for one year.
  • Inspecting fire sprinklers calls for either a Fire Inspector II or a NICET III credential.
  • Any sprinkler work that means taking the system apart requires a Fire Sprinkler Fitters license.
  • Inspecting and testing fire alarms calls for NICET Level II or above, a Certified Fire Alarm Technician certification, or Fire Inspector I.
  • Pyrotechnic work requires a state-licensed pyrotechnician.

Send your application to cdev@vail.gov, the Community Development Admin Team, at least two weeks before a new registration or renewal. Vail details

Requesting a state fire inspection

An inspection can only be requested once the permit is fully paid and issued. The permit card and the approved drawings have to be at the job site.

  1. Pay the permit fee in full so it can be issued.
  2. Keep the permit card and approved drawings at the site.
  3. Get your request in by noon on the Thursday before your chosen week.
  4. To avoid a fee, cancel at least 24 hours in advance.

Health facility and suppression inspections are assigned on the Monday morning of that week. Requests for school construction inspections are handled as they come in, based on availability. Inspection rules