Montana Contractor Licenses: Updated Requirements Guide
Montana regulates most contractor and trade activities at the state level through dedicated boards and programs. Electricians and plumbers hold individual trade licenses, boiler operating engineers hold graded credentials, and several specialty areas—such as elevators, fire protection, and water wells—are licensed by specific state programs. Construction businesses, including general contractors and roofing firms, register with the Department of Labor & Industry’s Employment Relations Division for workers’ compensation compliance.
We highlight several representative licenses and authorities for Montana below; this guide is updated periodically as additional topics are curated based on reader request. Use the quick navigation to jump to your trade, and always confirm final details with the official board or program before applying.
Where state law governs a trade, local building permits and inspections still apply. Expect to coordinate with the local building department on permits, plan reviews, and code adoption for each project.
Quick Navigation
Overview of Montana Contractor Licensing
Montana’s contractor licensing framework is administered primarily by the Montana Department of Labor & Industry (DLI). Within DLI’s Business Standards Division, the Montana State Electrical Board licenses electricians and electrical contractors; the Montana Board of Plumbers licenses journeyman and master plumbers; the Boiler Operator Program licenses boiler operating engineers; the Elevator Contractors, Mechanics, and Inspectors Licensing Program issues elevator credentials; and the Fire Protection License Program oversees fire protection business entities and individual endorsements. These programs publish applications, rules, and renewal guidance on their respective sites.
Construction businesses—including general contractors, roofing companies, and many other construction trades—register through DLI’s Employment Relations Division (ERD) under the statewide Construction Contractor Registration program. This is a business registration centered on workers’ compensation compliance; it is not a trade competency examination. Outside of DLI, the Department of Natural Resources and Conservation (DNRC) licenses water well contractors, drillers, and monitoring well constructors; the Department of Environmental Quality (DEQ) manages asbestos accreditations and project permits; and the U.S. Environmental Protection Agency (EPA) administers lead abatement certifications for work in Montana.
Montana licensing is statewide for the trades listed here. Even when a state credential is required, you should still plan for local permits, plan reviews, and inspections. Use the board and program links below to verify current forms, fees, and renewal schedules before applying.
Browse all Montana contractor license practice tests →
Electrician Licenses in Montana
Montana regulates electrical work with 4 license types.
Residential Electrician
Regulatory Authority
Licensed by the Montana State Electrical Board (https://boards.bsd.dli.mt.gov/electrical/).
Eligibility
- Complete an approved residential electrician apprenticeship program; or
- Document 4,000 hours of legally obtained residential experience on structures with fewer than five living units; or
- Document at least 20,000 hours in the electrical maintenance field with a minimum of 8,000 practical hours.[2][33][37]
Education
Approved residential apprenticeship or appropriate training program conducted by a bona fide union or trade association.[2][37]
Exam
Open-book, computer-based NEC exam with Montana amendments, administered by PSI. Exam fee is $75; schedule via psiexams.com using Montana State Electrical Board candidate information.[95][97][103]
Fees
- Application: $240
- Temporary Work Permit (if issued): $50
- Renewal: $140
Insurance
No insurance specified for individual residential electricians in board materials.
Renewal
Biennial. 16 hours of continuing education each cycle, with at least 8 hours on NEC updates.[32]
How to Apply
- Submit application and experience documentation through Montana’s licensing portal (ebiz.mt.gov/POL) or via the Board’s forms.
- After approval, schedule the PSI exam and take the open-book test.[95][97]
- Upon passing, complete any remaining steps and pay license fees to receive your credential.
Source: Residential Electrician Application
Exam Prep: PDF study guide with 1,500-2,500 questions, complete answer keys, and reference locators to exact code sections. Study offline; no time or use limits. Montana Residential Electrician Practice Test.
Journeyman Electrician
Regulatory Authority
Licensed by the Montana State Electrical Board (https://boards.bsd.dli.mt.gov/electrical/).
Eligibility
- Complete an approved inside wireman apprenticeship; or
- Document 8,000 hours of practical experience in wiring for, installing, and repairing electrical apparatus and equipment for light, heat, and power; or
- Document at least 20,000 hours in the electrical maintenance field with a minimum of 8,000 practical hours.[36][33]
Education
Approved electrical apprenticeship or appropriate union/trade association training.[36]
Exam
Open-book NEC-based exam administered by PSI. Exam fee $75; schedule through PSI’s Montana portal after Board approval.[95][97][103]
Fees
- Application: $240
- Temporary Work Permit (if issued): $50
- Renewal: $140
Insurance
No insurance specified for individual journeyman electricians in board materials.
Renewal
Biennial. 16 hours of CE each cycle, including NEC-related training per ARM 24.141.2102.[32]
How to Apply
- Apply via ebiz.mt.gov/POL or Board forms and provide experience/apprenticeship documentation.
- Upon approval, schedule and pass the PSI exam, then finalize issuance with the Board.[95][97]
Source: Journeyman/Residential Electrician Checklist
Exam Prep: PDF study guide with 1,500-2,500 questions, complete answer keys, and reference locators to exact code sections. Study offline; no time or use limits. Montana Journeyman Electrician Practice Test.
Master Electrician
Regulatory Authority
Licensed by the Montana State Electrical Board (https://boards.bsd.dli.mt.gov/electrical/).
Eligibility
Experience requirements are set by statute and Board rule and generally include journeyman-level experience in planning and supervising electrical work. Education (such as an electrical engineering degree) may be considered along with substantial journeyman experience; consult current Board criteria.[32][91]
Exam
Open-book master exam based on the NEC and Montana law, administered by PSI. Exam fee $85; schedule through PSI after Board approval.[95][97][103]
Fees
- Application: $190
- Renewal: $140
Insurance
No insurance specified for individual master electricians in board materials.
Renewal
Biennial. 16 hours of approved CE per cycle, including NEC update content as prescribed by the Board.[32]
How to Apply
- Apply via ebiz.mt.gov/POL with experience/education documentation.
- After approval, take and pass the PSI master exam, then complete issuance steps with the Board.[95][97]
Source: Montana State Electrical Board
Exam Prep: PDF study guide with 1,500-2,500 questions, complete answer keys, and reference locators to exact code sections. Study offline; no time or use limits. Montana Master Electrician Practice Test.
Unlimited Electrical Contractor
Regulatory Authority
Licensed by the Montana State Electrical Board (https://boards.bsd.dli.mt.gov/electrical/).
Eligibility
- Designation of a Montana-licensed master electrician as the responsible electrician, employed full-time and accountable for all licensed electrical work.[34][40]
Education
No separate educational requirement for the business entity beyond the qualifying master electrician’s credentials.[34][40]
Exam
No separate contractor trade exam is specified by the State Electrical Board for the Unlimited Electrical Contractor license.[34][40]
Fees
- Application: $300
- Renewal: $210
Insurance
Proof of workers’ compensation and unemployment insurance coverage as required by Montana law.[34][40]
Renewal
Biennial. Continuing education applies to individual electricians, not the contractor entity.[32][34]
How to Apply
- Submit the contractor application, designate the responsible master, and include insurance documentation.
- Pay required fees to the Board for processing and issuance.
Plumbing Licenses in Montana
Montana regulates plumbing work with 2 license types.
Journeyman Plumber
Regulatory Authority
Licensed by the Montana Board of Plumbers (https://boards.bsd.dli.mt.gov/plumber/).
Eligibility
- At least five years and 7,500 aggregate hours of legally obtained plumbing experience; or
- Completion of an approved apprenticeship program meeting Montana or U.S. DOL standards.[47][50]
Education
Approved plumbing apprenticeship or an equivalent combination of technical education and experience meeting Board standards.[47][50]
Exam
Board-prescribed written exam plus a practical exam. Minimum passing score is 70% on both portions.[50][47]
Fees
- Application: $100
- License: $170
- Temporary Work Permit (if issued): $100
- Reciprocity (if applicable): $300
- Renewal: $160
Insurance
No insurance requirement specified for the individual license.
Renewal
Biennial. Check Board rules for any current CE requirements at time of renewal.
How to Apply
- Complete the application and experience documentation listed on the Board’s forms.
- Upon approval, take the written and practical exams, and complete issuance requirements after passing.[50]
Source: Board of Plumbers Application
Master Plumber
Regulatory Authority
Licensed by the Montana Board of Plumbers (https://boards.bsd.dli.mt.gov/plumber/).
Eligibility
- Nine years of legally obtained plumbing experience, or
- Equivalent combinations of education and experience accepted by the Board. Out-of-state applicants without master licensure must submit notarized statements verifying master-level experience equivalent to nine years.[55]
Education
Approved technical or engineering education may count for up to two years of the experience requirement, subject to Board approval.[47][55]
Exam
Written exam and, if required by the Board, a practical exam testing advanced plumbing competence. Passing standards set by the Board.[50][55]
Fees
- Application: $100
- License: $170
- Temporary Work Permit (if issued): $100
- Reciprocity (if applicable): $300
- Renewal: $160
Insurance
No insurance requirement specified for the individual license.
Renewal
Biennial. Review current CE or renewal requirements before your cycle closes.
How to Apply
- Submit the application with experience/education documentation per the Board’s checklist.
- After approval, complete the exam(s) and pay license fees for issuance.[55]
HVAC Licenses in Montana
Montana regulates HVAC-related boiler operations with 5 boiler operating engineer license classes. HVAC contracting businesses register under Construction Contractor Registration (see General Contractor section) but do not have a separate statewide HVAC contractor competency license. Local permits and mechanical code compliance still apply to projects.
Limited Low-Pressure Boiler Operating Engineer License
Regulatory Authority
Licensed by the Montana Boiler Operator Program (https://boards.bsd.dli.mt.gov/boiler-operator-program/).
Eligibility
- Age 18+; and either
- Two months (320 hours) of supervised experience operating a limited low-pressure boiler or higher; or
- Six-hour training course plus eight hours of supervised experience with a licensed operator.[2]
Exam
Montana written examination for limited low-pressure boiler operating engineer; requirements set by the program.[2][12][15]
Fees
- Application and Exam: $70
- Renewal: $35 (annual)
Renewal
Annual renewal. Check current program rules for any training updates at renewal.
How to Apply
- Apply using the program checklist and forms; document supervised experience and/or approved training.
- Pass the state exam and complete renewal annually.[2]
Low-Pressure Boiler Operating Engineer License
Regulatory Authority
Licensed by the Montana Boiler Operator Program (https://boards.bsd.dli.mt.gov/boiler-operator-program/).
Eligibility
- Age 18+; and either
- Three months (480 hours) of supervised experience operating a low-pressure boiler or higher; or
- 30-hour training course plus 40 hours of supervised experience under a licensed operator.[2]
Exam
Montana written examination for low-pressure boiler operating engineer.[2][12][15]
Fees
- Application and Exam: $70
- Renewal: $35 (annual)
Renewal
Annual renewal. Maintain eligibility and comply with any program updates.
How to Apply
- Use the program’s application checklist to document supervised hours and/or approved training.
- Pass the state exam; renew annually.[2]
Third Class Boiler Operating Engineer License
Regulatory Authority
Licensed by the Montana Boiler Operator Program (https://boards.bsd.dli.mt.gov/boiler-operator-program/).
Eligibility
- Age 18+; and either
- Six months (960 hours) of supervised experience operating a third-class boiler or higher; or
- 30-hour training course plus 40 hours of supervised experience under a licensed operator.[2]
Exam
Montana written examination for third-class boiler operating engineer; format set by the department.[2][12][15]
Fees
- Application and Exam: $70
- Renewal: $35 (annual)
Renewal
Annual renewal with compliance to current rules and any training updates.
How to Apply
- Apply with experience/training documentation per the program checklist.
- Pass the state exam; renew annually.[2]
Second Class Boiler Operating Engineer License
Regulatory Authority
Licensed by the Montana Boiler Operator Program (https://boards.bsd.dli.mt.gov/boiler-operator-program/).
Eligibility
- Two years (3,840 hours) of supervised experience operating a second-class boiler or higher under a licensed boiler operator, as specified by rule.[2][15]
Exam
Montana second-class boiler operating engineer written exam.[2][12][15]
Fees
- Application and Exam: $70
- Renewal: $35 (annual)
Renewal
Annual renewal. Maintain experience and competence consistent with licensure rules.
How to Apply
- Apply per program checklist with documented experience.
- Pass the exam; renew annually via the program portal.[2]
First Class Boiler Operating Engineer License
Regulatory Authority
Licensed by the Montana Boiler Operator Program (https://boards.bsd.dli.mt.gov/boiler-operator-program/).
Eligibility
- Three years (5,760 hours) of supervised experience operating a first-class boiler; or
- Hold a second-class license plus one year (1,920 hours) of first-class experience.[2][15]
Exam
Montana first-class boiler operating engineer written exam. A proper-grade license is required to operate covered boilers or steam engines in Montana.[12][2][15]
Fees
- Application and Exam: $70
- Renewal: $35 (annual)
Renewal
Annual renewal through the program portal. Keep documentation current.[2]
How to Apply
- Apply with experience evidence using the program checklist.
- Pass the written exam and renew annually.[2]
General Contractor Licenses in Montana
Montana general contractor licensing includes 1 type focused on business registration and workers’ compensation compliance.
Construction Contractor Registration
Regulatory Authority
Administered by the Montana Department of Labor & Industry – Employment Relations Division, Construction Contractor Registration Unit (Program page).
Scope and Purpose
This is a business registration/license for construction contractors. It verifies workers’ compensation compliance for businesses engaged in construction and for corporations/manager-managed LLCs.[16][17][24]
Eligibility
- No trade competency experience or exam is required.
- Applicants must provide business information and workers’ compensation coverage for employees.[16][17]
Exam
None. This credential is not a trade test.[16][24]
Fees
- Application: $70
- Renewal: $70
Insurance
Proof of Montana workers’ compensation coverage for employees is required.[16][17]
Renewal
Biennial. Keep coverage and business information current.
How to Apply
- Access the program’s applications and forms, complete the registration packet, and submit with fees: Applications & Forms.
- Maintain workers’ compensation compliance for ongoing registration.[16]
Roofing Licenses in Montana
Montana does not issue a roofing trade-specific competency license. Roofing businesses operating in construction must hold the statewide Construction Contractor Registration (see above), maintain required workers’ compensation coverage for employees, and comply with local permitting and inspections.[16][30]
Statewide Registration Path for Roofing Firms
Register as a construction contractor with the Employment Relations Division and maintain workers’ compensation coverage. Confirm local building permit requirements and inspections for roofing projects in each jurisdiction. For sole proprietors with no employees, the Independent Contractor Exemption Certificate may apply—review ERD guidance before you begin work.[16]
For current forms and instructions, visit: Construction Contractor Registration.
Specialty Trade Licenses in Montana
Montana regulates specialty trades with 11 license types spanning water wells, elevators, fire protection, asbestos control, and lead abatement. These programs have distinct applications, exams or accreditations, insurance/bonding, and renewal schedules. Review each authority’s materials carefully before applying.
Water Well Contractor License
Regulatory Authority
Licensed by the Board of Water Well Contractors – DNRC (Program page).
Eligibility
- At least one year of apprenticeship or equivalent experience under direct supervision of a licensed water well contractor or driller.[68][69][63]
Knowledge & Education
Applicants must demonstrate knowledge of groundwater laws, sanitary standards, drilling methods, and geology relevant to well construction. The Board evaluates education and experience holistically.[63][68]
Exam
Oral and/or written exam (~200 questions) covering laws, hydrogeology, drilling practices, and monitoring well construction. Passing score: 80%.[68][69][63]
Fees
- Application and Exam: $575
Bond/Insurance
Surety bond required per ARM 36.21. Bond must be filed after passing the exam and before license issuance.[68][69]
Renewal
Annual. At least 4 continuing education credits (one hour per credit) each year in Board-approved courses (e.g., hydrogeology, drilling technology, safety, state standards).[70][71]
How to Apply
- Submit exam application to the Board/DNRC; sit for the contractor exam at a scheduled session.
- After passing, file the required bond and complete issuance steps with DNRC.[68][69]
Water Well Driller License
Regulatory Authority
Licensed by the Board of Water Well Contractors – DNRC (Program page).
Eligibility
- At least one year of apprenticeship or equivalent education/experience under direct supervision of a licensed well contractor or driller.[68][63]
Knowledge & Education
Requires familiarity with Montana groundwater laws, sanitary well construction standards, drilling tools/methods, and geology related to well construction.[63][69]
Exam
Written driller exam (~135 questions) on laws/rules, hydrogeology, geology, and drilling practices for cable tool and rotary rigs. Passing score: 80%.[68][69][63]
Fees
- Application and Exam: $475
Bond/Insurance
Drillers operate under a licensed contractor’s bond; a separate driller bond is not required.[68][69]
Renewal
Annual. Four CE credits per licensing year in Board-approved training are required.[70][71]
How to Apply
- Apply to the Board/DNRC for exam authorization; take the written exam.
- Work under a bonded water well contractor and maintain annual CE for renewal.[68][69][70]
Monitoring Well Constructor License
Regulatory Authority
Licensed by the Board of Water Well Contractors – DNRC (Program page).
Eligibility & Knowledge
Applicants must show experience or education in monitoring well construction under supervision of a licensed contractor/driller, and demonstrate knowledge of Montana laws, hydrogeology, construction practices, geology, and site safety.[63][69]
Exam
Written exam (~100 questions) on laws/rules, hydrogeology, monitoring well construction, geology, and site safety. Passing score: 80%.[69][68]
Fees
- Application and Exam: $475
Bond/Insurance
Bond must be filed after passing the exam and before license issuance.[68][69]
Renewal
Annual with 4 CE credits per year in approved courses.[70][71]
How to Apply
- Apply to DNRC for exam approval; pass the monitoring well constructor exam.
- File the required bond and complete issuance steps; maintain CE annually.[68][69][70]
Elevator Contractor License
Regulatory Authority
Licensed by the Elevator Contractors, Mechanics, and Inspectors Licensing Program – DLI (Program page).
Eligibility
- Hold general contractor registration and list licensed elevator mechanics/inspectors responsible for work performed under the license.[66][67]
Exam
Application by examination applies to all elevator categories. Passing the program’s exam is required; confirm specific exam details with the program.[66][67]
Fees
- Application by Examination: $200
- Original License: $600
- Annual Renewal: $600
Insurance
Commercial general liability insurance meeting 50-60-716, MCA, plus verification of workers’ compensation coverage.[66]
Renewal
Annual. Maintain insurance and associated personnel credentials.
How to Apply
- Submit application with required insurance and responsible personnel listings.
- Complete examination requirements and pay fees for issuance and renewal.[66][67]
Elevator Mechanic License
Regulatory Authority
Licensed by the Elevator Contractors, Mechanics, and Inspectors Licensing Program – DLI (Program page).
Eligibility
- Complete an approved apprenticeship program; or
- Provide a notarized experience affidavit documenting at least three years of conveyance work.[75][67]
Exam
Open-book exam, 2½ hours, minimum passing score 70%.[67][75]
Fees
- Application by Examination: $200
- Annual Renewal: $150
Renewal
Annual renewal through the licensing program portal.
How to Apply
- Submit application with apprenticeship completion or experience affidavit.
- Pass the exam and complete renewal annually.[67]
Source: Elevator License Information
Elevator Inspector License
Regulatory Authority
Licensed by the Elevator Contractors, Mechanics, and Inspectors Licensing Program – DLI (Program page).
Eligibility
Applicants document conveyance inspection and related experience per program rules and MCA Title 37, Chapter 73.[72][66]
Exam
Open-book exam, 2½ hours, minimum passing score 70%.[67]
Fees
- Application by Examination: $200
- Annual Renewal: $150
Renewal
Annual renewal with ongoing compliance to program standards.
How to Apply
- Submit application and experience documentation, complete exam, and renew annually.[67]
Source: Elevator Contractors, Mechanics, and Inspectors Licensing Program
Fire Protection Business Entity License (Sell, Service or Install Fire-Extinguishing Systems)
Regulatory Authority
Licensed by the Montana Fire Protection License Program – DLI (Program page).
Eligibility
Business entities must employ at least one individual holding a valid applicable fire protection endorsement representing the work the business performs (e.g., suppression, alarms). Endorsement holders may qualify via NICET, apprenticeship, manufacturer training, or equivalent credentials.[110][113][111]
Exam
No separate business-entity exam. Competence is demonstrated through endorsed individuals and supporting certifications. Insurance and workers’ compensation verification are required with the application.[110][113]
Fees
- Application: $100
- License: $200
- Annual Renewal: $200
- Late Renewal Penalty: $200
Insurance
Commercial general liability insurance meeting ARM 24.144.403 (commonly $1,000,000) and verification of workers’ compensation coverage.[110][109]
Renewal
Annual. Maintain insurance and endorsed personnel.
How to Apply
- Submit the business entity application with insurance and personnel documentation.
- Maintain at least one qualified, endorsed individual for each service category offered.[110]
Fire Protection Individual Endorsement (Sell, Install and Service Fire-Extinguishing Systems)
Regulatory Authority
Issued by the Montana Fire Protection License Program – DLI (Program page).
Eligibility & Education
Applicants qualify via NICET (typically Level II or higher work elements), completion of an approved apprenticeship, manufacturer training, or equivalent jurisdiction endorsement.[111][110]
Exam
Endorsement qualifications often rely on external certification exams (e.g., NICET). The program verifies credentials and issues endorsements.[111][110]
Fees
- Application: $100
- Endorsement License: $200
- Late Renewal Penalty: $100
Renewal
Annual renewal per program guidance; maintain qualifying credentials.
How to Apply
- Provide proof of qualifying certifications/training and submit the endorsement application.
- Renew annually and keep credentials current.[111]
Asbestos Accreditation (Inspector / Contractor / Supervisor)
Regulatory Authority
Administered by the Montana Department of Environmental Quality – Asbestos Control Program (Getting Started | Online Accreditation Portal).
Eligibility & Education
Complete accredited asbestos training courses in inspection, project design, abatement, or supervision before applying through the Montana online accreditation service.[73][74]
Exam
Pass examinations associated with the accredited asbestos training program. After training and passing, apply online to receive a temporary accreditation license and finalize through DEQ.[73][74]
Renewal
Periodic renewal per DEQ schedules. Maintain training credentials as required.
How to Apply
- Complete accredited training and testing; apply via the online accreditation portal.
- Follow DEQ instructions for documentation and any subsequent updates.[73][74]
Sources: DEQ Asbestos – Getting Started | Accreditation Application
Asbestos Project Permit
Regulatory Authority
Issued by the Montana Department of Environmental Quality – Asbestos Control Program (Getting Started).
Scope
Project permits for removal of friable asbestos-containing material require work to be performed by Montana-accredited asbestos contractors and inspectors. Experience is embedded in the individual accreditations rather than the permit itself.[74][73]
Exam
No separate examination for the permit; issued based on accredited personnel and regulatory compliance.[74]
Insurance
Contractors must maintain insurance meeting DEQ requirements for asbestos projects; amounts are set by DEQ policy.[74]
Renewal
Per project. Obtain a new permit for each regulated project and maintain required accreditations and insurance.
How to Apply
- Use the DEQ portal to initiate permits and submit required project information and documentation.
- Ensure all workers hold current Montana asbestos accreditations.[74]
Source: DEQ Asbestos – Getting Started
Lead Abatement Individual Certification
Regulatory Authority
Administered by the U.S. Environmental Protection Agency – Lead Abatement Program (Montana) (Program page).
Eligibility & Education
Complete EPA-accredited training in lead-based paint abatement, inspection, assessment, or evaluation and pass program examinations prior to applying for certification via EPA’s Central Data Exchange.[116][118]
Exam
Exams are administered as part of EPA-accredited training. After passing, apply online for certification through EPA systems.[116][118]
Renewal
Periodic per EPA requirements. Maintain training credentials as required by federal rules.
How to Apply
- Complete EPA-accredited training and associated testing.
- Apply for certification via EPA’s Central Data Exchange using the applicable lead abatement category.[116][118]
Application Process
- Determine the trade and license type needed (e.g., electrician, plumber, boiler operator, elevator contractor, construction contractor registration) and identify the appropriate Montana board or program.[32][50][10][65][16]
- Review licensing requirements and application checklists on the relevant board or program website, including experience, education, insurance, and supporting documentation.[33][47][2][66][110]
- Complete the license application either online through the Professional and Occupational Licenses portal (ebiz.mt.gov/POL) for DLI boards or by downloading and mailing paper forms where required (e.g., Construction Contractor Registration).[33][37][17][20]
- Gather and submit proof of experience or apprenticeship completion, license verifications from other jurisdictions, and any transcripts or training certificates as specified by the board.[33][47][68][69]
- Obtain and provide proof of Montana workers’ compensation insurance and, where applicable, unemployment insurance or surety bonds (for contractors, electrical contractors, water well contractors, and fire protection entities).[16][34][68][110]
- Pay the required application and license fees (for example, $70 for Construction Contractor Registration, board-specified fees for electrician, plumber, boiler operator, elevator, water well, and fire protection licenses) using the methods described on each program’s site.[16][20][2][66][110]
- For licenses requiring examinations, await board approval and then schedule exams with PSI (for electricians) or directly with the board or DNRC offices (for boiler operators and water well contractors) according to published exam information sheets.[95][97][68][69]
- After passing any required exams and meeting all documentation and insurance requirements, receive the license or registration certificate and comply with renewal and continuing education obligations.[32][50][70][110]
Timeline: Construction Contractor Registration applications generally process within several business days after receipt of complete forms and fees, while exam-based licenses (electrician, plumber, boiler operator, elevator, water well contractor) may take longer depending on exam scheduling and Board review cycles.[16][20][95][68]
Reciprocity
Montana has reciprocity with: Oregon, Idaho, North Dakota, South Dakota
Requirements: The Montana Board of Plumbers may enter into written reciprocal agreements for journeyman licensure with other states whose qualifications include at least five years of documented plumbing experience and a written examination based on the Uniform Plumbing Code with a minimum passing score of 70 percent; applicants must hold an active license in good standing and may be required to pass Montana’s practical exam if the other state does not require one.[55][50]
Frequently Asked Questions
How long does it take to get a contractor license in Montana?
Construction Contractor Registration applications generally process within several business days after receipt of complete forms and fees. Exam-based licenses—such as electrician, plumber, boiler operator, elevator, and water well—depend on exam scheduling and Board review cycles, so allow additional time.[16][20][95][68]
Can I transfer my license from another state to Montana?
Montana has reciprocity with Oregon, Idaho, North Dakota, South Dakota for journeyman plumbers. The Board of Plumbers may reciprocate with states whose standards meet or exceed Montana’s (including a UPC-based written exam with a 70% minimum). You may be required to pass Montana’s practical exam if your originating state does not require one.[55][50]
What happens if I fail the exam?
Retake policies vary by program. Electrician exams are administered by PSI; contact PSI or review the State Electrical Board’s exam information for rescheduling. For boiler operator, water well, elevator, and other specialty exams, check the applicable board’s retake and waiting-period policies.
Do I need insurance?
Insurance requirements depend on the credential. Construction Contractor Registration requires workers’ compensation coverage. Electrical contractors must provide workers’ compensation and unemployment insurance coverage. Fire Protection business entities must carry commercial general liability (commonly $1,000,000). Asbestos project permits require insurance set by DEQ policy. Individual trade licenses (e.g., journeyman/master electricians, plumbers) generally do not specify individual liability insurance, but verify current rules before applying.
How do I renew my license?
Renewal cycles vary by license: electricians and plumbers renew biennially; boiler operator, elevator, and fire protection business entity licenses renew annually; water well credentials renew annually with continuing education; Construction Contractor Registration renews biennially. Always confirm the current renewal date and CE requirements with your board.
What if my city has additional requirements?
State licensing governs the trades listed here, but local building permits, inspections, and code adoptions apply to projects. Contact the local building department where you work to confirm permit submittals, plan review needs, and inspection scheduling.
Where can I find practice tests for Montana exams?
We offer comprehensive PDF practice tests for Montana contractor license exams. Each test typically contains 1,500 to 2,500 code-relevant questions with precise answer keys and reference locators showing exact code sections. Study offline at your own pace with no time or use limits. Browse Montana contractor practice tests.
Montana · Practice tests
Montana contractor license practice tests
The Montana practice tests we publish today: comprehensive PDF guides, typically 1,500 to 2,500 questions each, with full answer keys and reference locators to the exact code sections. We add new tests regularly, so if your license isn’t listed here, contact us and we’ll build it.
- Business, Law, and Project Management (NASCLA) Reference Practice Test
- Installing Hardwood Flooring NOFMA - Reference Practice Test
- Montana Journeyman Electrician License Practice Test
- Montana Master Electrician License Practice Test
- Montana Residential Electrician License Practice Test
- National Electrical Code (NEC) 2017 Practice Test
Related Official Resources
Official Sources for Further Details:
-
Montana State Electrical Board
https://boards.bsd.dli.mt.gov/electrical/
Official Board Site | Accessed: 2026-09-20 -
Montana State Electrical Board – Residential Electrician Application
https://boards.bsd.dli.mt.gov/_docs/ele/res-ele-app-24.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana State Electrical Board – Journeyman/Residential Electrician Checklist
https://boards.bsd.dli.mt.gov/_docs/ele/journyman-residential.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana State Electrical Board – Electrical Contractor Checklist
https://boards.bsd.dli.mt.gov/_docs/ele/ec-checklist.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana State Electrical Board – Unlimited Electrical Contractor Application
https://boards.bsd.dli.mt.gov/_docs/ele/uec-app.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana State Electrical Board – Electrician Examinations Information Sheet
https://boards.bsd.dli.mt.gov/_docs/ele/NEC-Exam-Info-Sheet-and-Building-Codes-Ammendments-Combined-2022.pdf
Official Board Site | Accessed: 2026-09-20 -
PSI Exams – General Information
https://www.psiexams.com
Exam Provider | Accessed: 2026-09-20 -
Montana Contractor – Construction Contractor Registration
https://erd.dli.mt.gov/work-comp-regulations/montana-contractor/construction-contractor-registration
Official Department Site | Accessed: 2026-09-20 -
Montana Contractor – Applications and Forms
https://erd.dli.mt.gov/work-comp-regulations/montana-contractor/applications-and-forms
Official Department Site | Accessed: 2026-09-20 -
Montana Code Annotated – Construction Contractors Chapter
https://esd.dli.mt.gov/_docs/T-37-ch-45-Construction-Contractors.pdf
State Statute | Accessed: 2026-09-20 -
Montana Board of Plumbers – Application Form
https://boards.bsd.dli.mt.gov/Portals/133/Documents/plu/plu_app.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Board of Plumbers – Journeyman Licensing Checklist
https://boards.bsd.dli.mt.gov/_docs/plu/pj-checklist.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Board of Plumbers – Journeyman and Master License Checklist
https://boards.bsd.dli.mt.gov/_docs/plu/pj-license-checklist.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Boiler Operator Program – Application Checklist
https://boards.bsd.dli.mt.gov/_docs/boi/Boiler-App-Checklist.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Boiler Operator Program
https://boards.bsd.dli.mt.gov/boiler-operator-program/
Official Board Site | Accessed: 2026-09-20 -
Montana Department of Labor & Industry – Boiler Permits
https://bsd.dli.mt.gov/building-codes-permits/permit-applications/boiler-permits/
Official Department Site | Accessed: 2026-09-20 -
Montana Administrative Rule 24.122.501 – License Required to Operate Boilers and Steam Engines
https://www.law.cornell.edu/regulations/montana/Mont-Admin-r-24.122.501
State Statute | Accessed: 2026-09-20 -
Montana Administrative Rule 24.122.505 – Application for Licensure
https://www.law.cornell.edu/regulations/montana/Mont-Admin-r-24.122.505
State Statute | Accessed: 2026-09-20 -
Board of Water Well Contractors – DNRC Water Resources
https://dnrc.mt.gov/Water-Resources/Well-Contractors-Drillers/Well-Contractors-and-Drillers
Official Department Site | Accessed: 2026-09-20 -
Montana Code Annotated – 37-43-302 License Required (Water Well Contractors)
https://archive.legmt.gov/bills/mca/title_0370/chapter_0430/part_0030/section_0020/0370-0430-0030-0020.html
State Statute | Accessed: 2026-09-20 -
Montana Board of Water Well Contractors – Examination Application and Procedures
https://dnrc.mt.gov/Water-Resources/Well-Contractors-Drillers/examination-application-6-2025.pdf
Official Department Site | Accessed: 2026-09-20 -
Montana Board of Water Well Contractors – Examination Procedures
https://dnrc.mt.gov/_docs/water/examination_procedures_8-2022.pdf
Official Department Site | Accessed: 2026-09-20 -
Licensed Well Driller Continuing Education Program – DNRC
https://dnrc.mt.gov/Water-Resources/Well-Contractors-Drillers/continuing-_education_program.pdf
Official Department Site | Accessed: 2026-09-20 -
Elevator Contractors, Mechanics, and Inspectors Licensing Program
https://boards.bsd.dli.mt.gov/elevator-contractors/
Official Board Site | Accessed: 2026-09-20 -
Elevator Licensing Program Rules – ARM Chapter 24.142
https://boards.bsd.dli.mt.gov/_docs/arm/CH-142-ELP-as-of-06-30-2021.pdf
Official Board Site | Accessed: 2026-09-20 -
Elevator License Information – Mechanics and Inspectors
https://boards.bsd.dli.mt.gov/elevator-contractors/license-information/
Official Board Site | Accessed: 2026-09-20 -
Montana Code Annotated – 37-73-201 License Required (Elevators)
https://mca.legmt.gov/bills/mca/title_0370/chapter_0730/part_0020/section_0010/0370-0730-0020-0010.html
State Statute | Accessed: 2026-09-20 -
Montana Fire Protection License Program
https://boards.bsd.dli.mt.gov/fire-protection/
Official Board Site | Accessed: 2026-09-20 -
Montana Fire Protection Licensure Program – Business Entity Requirements
https://boards.bsd.dli.mt.gov/Portals/133/Documents/fpl/dli-bsd-fpl001.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Fire Protection Licensure Program – Business Entity Application
https://boards.bsd.dli.mt.gov/_docs/fpl/fire-app1.pdf
Official Board Site | Accessed: 2026-09-20 -
Montana Fire Protection License Program – Individual Endorsement Information
https://boards.bsd.dli.mt.gov/fire-protection/license-information/individual-endorsement
Official Board Site | Accessed: 2026-09-20 -
Montana Asbestos Accreditation Application and Renewal Service
https://app.mt.gov/walkthrough/asbestos/
Official Department Site | Accessed: 2026-09-20 -
Montana Asbestos Permits – Getting Started
https://app.mt.gov/asbestospermits/Home/GettingStarted
Official Department Site | Accessed: 2026-09-20 -
EPA Lead Abatement Individual Certification
https://www.epa.gov/lead/how-do-i-become-certified-individual-lead-abatement-program
Official Federal Site | Accessed: 2026-09-20 -
EPA Lead-Based Paint Activities – Firm Certification
https://www.epa.gov/lead/how-does-my-firm-become-certified-under-lead-based-paint-activities-abatement-inspection-and
Official Federal Site | Accessed: 2026-09-20 -
Montana Commerce – Small Business Licensing Information
https://commerce.mt.gov/Business/Programs-and-Services/Small-Business-Development-Center/resources/Business-Licensing
Official Department Site | Accessed: 2026-09-20
Important Disclaimer
Information Currency: This guide reflects licensing information as available in 2026. Licensing requirements are subject to change without notice. Always verify current requirements with official sources.
Official Source: For current information, contact Multiple Authorities – See research notes:
- Website: https://dli.mt.gov
- Phone: (406) 444-3555
No Legal Advice: This guide provides general information only. Consult with the licensing board or a qualified professional for guidance specific to your situation.
Local Permits: Even with state licensing, local building permits, plan reviews, and inspections may apply. Confirm requirements with your local building department before starting work.
