Minnesota Fire Sprinkler Contractor License Requirements (2026)

The Minnesota Department of Labor and Industry (DLI), Construction Codes and Licensing Division, licenses fire protection contractors and fitters under Minn. Stat. §299M and Minn. R. 7512. Minnesota issues two distinct credentials: an individual Sprinkler Fitter license (journey-level installer) and a Sprinkler Contractor license held by a business with a designated Responsible Licensed Sprinkler Fitter. The State Fire Marshal Division within the Department of Public Safety enforces installation standards and adopts NFPA 13, 13R, and 13D by reference through the Minnesota State Fire Code.

Regulatory Body Profile

Minnesota Department of Labor and Industry — Construction Codes and Licensing Division (DLI) is the statutory authority responsible for issuing and enforcing this license under Minnesota Statutes Chapter 326B (Construction Codes and Licensing). DLI licenses residential building contractors, remodelers, electricians, plumbers, and mechanical (HVAC) contractors statewide; administers the Contractor Recovery Fund; and enforces the Minnesota State Building Code, Electrical Code, and Plumbing Code.

Official portal: https://www.dli.mn.gov/business/licensing-and-registration/
Address: 443 Lafayette Road N, St. Paul, MN 55155
Phone: (651) 284-5005

The Eligibility Audit

Eligibility begins with two baseline checks: the applicant must be 18 or older and must provide a valid Social Security Number. No Minnesota residency requirement.

Good moral character

DLI reviews each applicant for fitness, including disclosure of prior disciplinary action against any fire protection license in any jurisdiction.

Background investigation

Mandatory criminal history disclosure on the application.

Experience and Education Standards

A minimum of four years (7,000 hours) of practical sprinkler fitting experience under a licensed Minnesota sprinkler contractor, or completion of a registered sprinkler fitter apprenticeship through the UA or an equivalent program must be documented and verified. Unless the board publishes a different lookback period, applicants should keep payroll, tax, project, or supervisor records that support the claimed experience.

Accepted proof of experience or eligibility

DLI Experience Affidavit signed by each licensed sprinkler contractor employer
Certified payroll records, W-2 statements, or 1099 records covering the qualifying period
NICET Automatic Sprinkler System Layout certification card (Level II minimum for fitters; Level III/IV for the Responsible Licensed Sprinkler Fitter)

Education substitution

Completion of a registered sprinkler fitter apprenticeship counts as the full four years of experience. NICET Level III in Automatic Sprinkler System Layout is accepted by DLI as evidence of design competency for the contractor designation.

The Exam Syllabus

DLI Construction Codes and Licensing Division (administered by Prometric) administers the required examination. Each part below must be passed before the license will issue:

Minnesota Sprinkler Fitter Examination — NFPA 13 installation, hydraulic calculations, Minnesota State Fire Code, and Minn. R. 7512 — 100 questions, 240 minutes, passing score 70%

Examination fee: $50 examination fee paid to the testing provider.

Retake policy: Failed examinations may be re-taken after a 30-day waiting period upon paying a new $50 fee.

Bonding, Insurance & Financial Security

The applicant must secure and file a $25,000 surety bond before the DLI will release the license.

General liability

Minn. Stat. §299M.04 requires the sprinkler contractor to carry general liability insurance of at least $300,000 per occurrence and $300,000 aggregate.

Workers' compensation

Workers' compensation coverage is mandatory under Minn. Stat. §176 for any contractor with employees.

Additional financial requirements

No state-level net worth requirement, but the $25,000 surety bond must be filed with DLI before the license is issued.

Schedule of Fees

Fee	Amount
Application (non-refundable)	$50
Examination	$50
Initial license	$200
Renewal (every 2 years)	$200

Renewal and Continuing Obligations

The Minnesota Sprinkler Fitter and Sprinkler Contractor (DLI) runs on a 2 years renewal cycle. The current renewal fee is $200. Sprinkler fitter and sprinkler contractor licenses both renew on a two-year cycle.

Continuing education: 16 hours of DLI-approved continuing education each two-year cycle, covering the current edition of NFPA 13 and the Minnesota State Fire Code.

Downloadable Asset

2026 Minnesota Fire Sprinkler License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Out-of-State Reciprocity

For this classification, Minnesota does not recognize the NASCLA Accredited Examination.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

Minnesota does not maintain bilateral reciprocity for sprinkler fitter or contractor licenses. NICET Automatic Sprinkler System Layout certification is universally recognized and accelerates the experience review.

Weighing more than one jurisdiction? The national hub compares Fire Sprinkler license requirements in every state — exam, bond, fee, and experience thresholds side by side.

The Application Roadmap

Enroll in a registered sprinkler fitter apprenticeship. Join a UA Local 417 (Twin Cities) or UA Local 539 program, or another DLI-registered apprenticeship covering NFPA 13 installation and hydraulics.
Log 7,000 hours of journey-level sprinkler fitting experience. Document four years under a licensed Minnesota sprinkler contractor with DLI Experience Affidavits.
Earn NICET Automatic Sprinkler System Layout certification. Pass NICET ASSL Level II for fitters or Level III/IV to qualify as Responsible Licensed Sprinkler Fitter for a contractor business.
Submit the DLI Sprinkler Fitter application. File the application with experience affidavits, NICET card, and the $50 fee through the DLI Construction Codes and Licensing Division.
Pass the Minnesota Sprinkler Fitter Examination at 70%. Score 70% or better on NFPA 13, hydraulics, Minnesota State Fire Code, and Minn. R. 7512.
File the $25,000 surety bond and certificates of insurance. Submit bond, $300,000 general liability, and workers compensation coverage to DLI.
Receive the Sprinkler Fitter or Sprinkler Contractor license. DLI issues the credential within 30 days of receiving complete bond and insurance documentation.
Register installations with the State Fire Marshal Division. All commercial sprinkler installations require plan submission and acceptance testing under the Minnesota State Fire Code.

Pre-Application Checklist

Ahead of submission to DLI, confirm every item on this short list:

☐ 7,000 hours of documented sprinkler fitting experience
☐ NICET ASSL certification (Level II for fitters, Level III/IV for RLSF)
☐ DLI Sprinkler Fitter application with $50 fee
☐ Pass the Minnesota Sprinkler Fitter exam at 70%+
☐ $25,000 surety bond on file with DLI
☐ $300,000 general liability and workers compensation certificates
☐ State Fire Marshal Division installation registration

Where Applications Stall

The errors below are the ones that most frequently cost Minnesota Fire Sprinkler applicants time, drawn from the cited board guidance.

Designating an RLSF without NICET Level III

DLI expects the Responsible Licensed Sprinkler Fitter for a contractor business to hold NICET Automatic Sprinkler System Layout Level III at minimum. Lower-level designations are routinely rejected.

Filing the bond after the license is issued

The $25,000 surety bond must be on file with DLI before the license is issued. DLI will not back-date.

Skipping State Fire Marshal acceptance testing

Every commercial sprinkler installation requires plan review and acceptance testing by the State Fire Marshal Division or delegated AHJ.

Designing to the wrong NFPA 13 edition

Minnesota adopts a specific edition of NFPA 13 through the State Fire Code. Designing to a newer or older edition results in plan rejection.

Letting the NICET certification lapse

A lapsed NICET certification automatically suspends the contractor license that depends on it as the qualifying RLSF.

Recommended Study Materials

The list below collects the board's cited references and the materials applicants typically study from. CLR is not paid to recommend any of them.

NFPA 13 — Standard for the Installation of Sprinkler Systems (Minnesota-adopted edition) — National Fire Protection Association. Primary technical reference. Open-book at the test center.
Minnesota State Fire Code (Minn. R. 7511) — State of Minnesota. Adopted IFC with Minnesota amendments.
NICET Automatic Sprinkler System Layout Reference Guide (Levels I–IV) — NICET. Required for fitter and RLSF certification.

Other Minnesota Trade Licenses

CLR maintains guides for additional Minnesota trades; the published ones are listed here:

Common Questions

Who regulates fire sprinkler contractors in Minnesota?

The Minnesota Department of Labor and Industry, Construction Codes and Licensing Division, issues sprinkler fitter and sprinkler contractor licenses under Minn. Stat. §299M. The State Fire Marshal Division enforces installation standards.

What is the difference between a Sprinkler Fitter and a Sprinkler Contractor in Minnesota?

A Sprinkler Fitter is the individual journey-level installer credential. A Sprinkler Contractor license is held by a business and requires a designated Responsible Licensed Sprinkler Fitter, typically NICET ASSL Level III or higher.

What NFPA standards apply in Minnesota?

Minnesota adopts NFPA 13 for commercial systems, NFPA 13R for low-rise residential occupancies, and NFPA 13D for one- and two-family dwellings through the Minnesota State Fire Code.

What surety bond does Minnesota require?

Minn. Stat. §299M.04 requires a $25,000 surety bond filed with DLI before the sprinkler contractor license is issued.

How often does the Minnesota Sprinkler Fitter license renew?

Every two years. Renewal requires 16 hours of continuing education on the current edition of NFPA 13 and the Minnesota State Fire Code.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-06-05 · Next scheduled review 2026-09-03