Massachusetts Contractor License Exam Guide (2026)

How Massachusetts licenses contractors

The BBRS issues Construction Supervisor Licenses (CSL) for structural work, while OCABR registers Home Improvement Contractors (HIC). Prometric (prometric.com/massachusetts) delivers the CSL exam.

Massachusetts contractors design for 110-mph coastal winds, 70 psf snow loads, salt spray corrosion, and freeze–thaw cycles. Exams highlight vapor control, energy code, and coastal flood-resistant design.

Official source: Massachusetts Board of Building Regulations and Standards (CSL)

Massachusetts contractor license types

Most residential builders maintain both CSL (for permits) and HIC registration (for consumer protection compliance).

What's on the Massachusetts contractor exam

Prometric offers CSL exams in Boston, Fall River, Lawrence, West Springfield, and online proctoring.

What Massachusetts exam questions emphasize

• 780 CMR structural provisions, energy code, and fire safety
• Lead-safe renovation and EPA RRP rules
• Home Improvement Contractor contract clauses and deposit limits (1/3 cap)
• Massachusetts lien law (Notice of Contract within 90 days, Statement of Account within 120 days)

Exam-day logistics

• Bring government ID, Authorization to Test, and allowed code books (780 CMR, IRC, IBC as specified)
• Open book but time-limited—tab critical sections before the exam
• Scores appear immediately; submit proof to BBRS along with insurance certificates

Trade-specific exam guides

If you're licensing in a single trade rather than the Massachusetts general contractor classification, the dedicated trade hub will get you to the right code book and exam structure faster.

• General contractor exam guide — IBC/IRC, NASCLA acceptance, and Business & Law.
• Electrical contractor exam guide — NEC (NFPA 70) calculations and grounding/bonding.
• Plumbing contractor exam guide — IPC/UPC drainage sizing, venting, and backflow.
• HVAC contractor exam guide — IMC ventilation, refrigerant management, and load calcs.

Massachusetts code books & approved references (2026)

Always confirm the exact editions and tab rules in your candidate bulletin before exam day. Editions can change between license cycles.

• 780 CMR (Massachusetts State Building Code based on IBC 2015)
• 2015 International Residential Code
• International Energy Conservation Code 2015 (Massachusetts amendments)
• OSHA 29 CFR 1926
• MGL Chapter 142A (HIC Law)
• EPA RRP guidance

Fees & timeline for the Massachusetts contractor license

• $150 CSL exam fee + $150 initial license
• $150 HIC registration + $100 Guaranty Fund contribution
• Renewal every 2 years (CSL) with 12 hours CE; HIC annual renewal $100
• Insurance: $500k liability and workers' comp for employees
• Lead-safe certifications if disturbing lead paint

Use the All States hub for cross-state planning; check BBRS and OCABR for exact fees before filing.

Massachusetts Business & Law focus

The CSL exam embeds business/law and code content; HIC registration emphasizes contract compliance, consumer rights, and Guaranty Fund rules.

• Memorize HIC contract requirements (start/completion dates, CSL/HIC numbers, Guaranty Fund notice)
• Understand lien and payment rules under MGL c.254
• Know worker classification tests (ABC test) and workers' comp obligations
• Review OSHA Subpart M, L, and X for safety questions

Practice with our national Business & Law exam hub for cross-state baseline rules.

A focused 4-week study plan for the Massachusetts exam

Because massachusetts contractors design for 110-mph coastal winds, 70 psf snow loads, salt spray corrosion, and freeze–thaw cycles, this four-week outline targets what Massachusetts field inspectors and your licensing board exam items actually test—not generic national prep.

1. Week 1 — Map the exam. Pull your current candidate bulletin, list every reference, and confirm the modules you have to pass. Start a one-page error log. Spend extra time on: 780 CMR structural provisions, energy code, and fire safety.
2. Week 2 — Code book navigation. Drill open-book lookups (or memorisation drills if your module is closed-book) until you can find any answer in under 60 seconds. Anchor practice around: Lead-safe renovation and EPA RRP rules.
3. Week 3 — Business & Law. The CSL exam embeds business/law and code content; HIC registration emphasizes contract compliance, consumer rights, and Guaranty Fund rules. Layer in scenario-based questions on contracts, lien notice, payroll, and insurance.
4. Week 4 — Full simulations. Prometric offers CSL exams in Boston, Fall River, Lawrence, West Springfield, and online proctoring. Run two full-length timed simulations. Review every miss with a one-sentence rule statement.