- What the MI-RB Certification Actually Is
- Who Regulates and Administers the Exam
- Exam Format: One Combined Test, Two Sections
- The 23 Domains You're Tested On
- Eligibility, Prelicensure Education, and Application
- Fees and Timeline From Application to License
- What Counts as Passing
- Keeping the License Active
- Who Actually Needs This Credential
- Preparing Around the Domain Weights
- Frequently Asked Questions
- MI-RB is the Michigan Residential Builder License Examination, administered by PSI Services for LARA's Bureau of Construction Codes.
- The test is one closed-book exam with 160 scored multiple-choice questions across Business and Law (50) and Practice/Trade (110).
- You need 116 correct answers out of 160 (72.5%) within a 240-minute time limit to pass.
- Carpentry (Domain 14) carries the heaviest weight of any single domain at 16 questions.
What the MI-RB Certification Actually Is
MI-RB stands for the Michigan Residential Builder License Examination, the state licensing test that individuals must pass before they can legally operate as a residential builder in Michigan. Passing the exam is not the entire license process by itself - it's the qualifying test that, combined with education hours and an approved application, leads to an individual Residential Builder license issued by Michigan's Department of Licensing and Regulatory Affairs (LARA).
This site's scope is specifically the individual Residential Builder examination - not the more limited Maintenance & Alteration trade examination, which covers a narrower scope of work. If you're building homes, doing structural additions, or running a general residential construction business in Michigan, the Residential Builder exam is the one that applies to you.
Who Regulates and Administers the Exam
The credential sits under LARA's Bureau of Construction Codes, the state agency responsible for licensing residential builders and maintenance & alteration contractors in Michigan. LARA sets the licensing rules, education requirements, fees, and renewal cycle, but the actual exam delivery is outsourced to PSI Services LLC, a third-party testing company that runs computer-based exams at test centers.
PSI publishes the official candidate handbook that spells out exam content, question counts, time limits, and references - including the 2015 Michigan Residential Code, which is listed among the exam's reference materials. If you want the full breakdown of everything tested, see the MI-RB Exam Domains 2026: Complete Guide to All 23 Content Areas for a domain-by-domain walkthrough.
Exam Format: One Combined Test, Two Sections
Unlike some state licensing schemes that split content into separate testing sessions, Michigan's Residential Builder exam is delivered as one combined, closed-book, multiple-choice examination. Business and Law and Practice/Trade content appear together in a single sitting, and they're scored together - including on retakes. You don't get to isolate a weak section and retest only that portion; a retake means sitting for the full 160-question exam again.
- Total scored questions: 160 (50 Business and Law + 110 Practice/Trade)
- Unscored questions: up to 10 additional experimental items may appear, but they don't count toward your score
- Time limit: 240 minutes
- Question type: multiple-choice, closed-book
- Delivery: computer-based testing at PSI test centers, available in English and Spanish
Key Takeaway
Because the exam is scored as one combined test, you can't "pass" Business and Law separately from Practice/Trade - your raw score across all 160 questions is what determines pass or fail.
For a deeper look at whether this format and content load is genuinely tough for career-changers versus experienced tradespeople, read How Hard Is the MI-RB Exam? Complete Difficulty Guide 2026.
The 23 Domains You're Tested On
PSI's exam outline breaks content into 23 domains split across the two sections. Domains 1 through 8 make up Business and Law; domains 9 through 23 make up Practice/Trade. Each domain has an official question allocation, so not every topic carries equal weight.
Business and Law (50 questions)
Domain 1: Regulatory and Statutory Requirements - 13 questions
The largest domain within Business and Law. Covers licensing law, permitting, code enforcement, and the statutory framework builders operate under in Michigan.
Domains 2-8
Types of Business Organization (4), Estimating (1), Contracts (7), Project Management and Administration (6), Accounting and Finance (6), Insurance, Bonds and Liens (11), and Personnel (2) round out the Business and Law section.
- Insurance, Bonds and Liens is the second-heaviest Business and Law domain - expect detailed questions on lien rights and required coverage
- Contracts questions test your understanding of enforceable agreements and change orders
Practice/Trade (110 questions)
Domain 14: Carpentry - 16 questions
Carpentry is the single largest domain on the entire exam, Business and Law included. Framing, rough carpentry, and finish carpentry knowledge deserve disproportionate study time.
Domain 11: Excavation/Sitework - 11 questions
Grading, drainage, and sitework sequencing show up heavily here - a domain worth mastering early since it overlaps with Domain 9's Site Engineering content.
The remaining Practice/Trade domains - Site Engineering (5), Plans, Specifications and Estimating (14), Footings and Foundation Walls (9), Concrete (7), Masonry (9), Roofing (7), Insulation (5), Ventilation (2), Windows, Doors and Skylights (5), Siding Installation (3), Interior and Exterior Finishes (5), Specialties (2), and Safety and Employee Protection Including MIOSHA (10) - fill out the rest of the 110-question section.
For the complete list with study angles for each area, see MI-RB Exam Domains 2026: Complete Guide to All 23 Content Areas.
Eligibility, Prelicensure Education, and Application
Before LARA will approve you to sit for the exam, standard applicants must complete 60 hours of approved prelicensure education. That total isn't a free-for-all: it requires at least six hours in each of seven prescribed subject areas, plus 18 elective hours to round out the 60.
Beyond the education hours, the application itself requires:
- A physical Michigan business address (not a P.O. box)
- Government-issued identification
- Verification of completed education hours
- Good-moral-character certification
LARA approval has to happen before you can schedule a test with PSI, and the entire application process - approval through testing - must be completed within a one-year window. Let that window lapse and you'll need to restart pieces of the process. For the full eligibility checklist, read MI-RB Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Fees and Timeline From Application to License
Money moves through this process in two distinct payments. The exam or retest fee is $117, paid to PSI each time you sit for the test. Separately, the initial individual license application fee is $195, paid to LARA as part of getting licensed once you've passed.
| Cost Item | Amount | Paid To |
|---|---|---|
| Exam / retest fee | $117 | PSI Services |
| Initial license application | $195 | LARA |
| License renewal (every 3 years) | $150 | LARA |
Because the exam retest fee applies every time you sit - including retakes of the full combined test - it pays to prepare thoroughly rather than treat the first attempt as a practice run. A detailed cost breakdown, including how education hours factor into total spend, is available at MI-RB Certification Cost 2026: Complete Pricing Breakdown.
What Counts as Passing
The passing standard is a raw score of 116 correct answers out of the 160 scored questions, which works out to 72.5%. Remember, up to 10 additional unscored experimental questions may be mixed into your test form - you won't know which ones those are, and they don't count for or against you, so answer every question as if it's scored.
Key Takeaway
Since Business and Law and Practice/Trade are scored together, a strong Practice/Trade performance can offset a weaker Business and Law showing, and vice versa - there's no minimum per-section cutoff.
For a full explanation of how the raw score and percentage relate, and what margin of safety to aim for, see MI-RB Passing Score 2026: Exactly What You Need to Pass. If you're curious how candidates generally perform on this exam, MI-RB Pass Rate 2026: What the Data Shows covers what's publicly documented.
Keeping the License Active
An individual Residential Builder license isn't permanent once issued - it renews every three years by May 31 of the license's assigned renewal year, and renewal years are staggered across license holders rather than falling on the same calendar year for everyone. The renewal fee is $150.
Continuing education requirements step down over time:
- Each of the first two renewal cycles requires 21 continuing-education hours
- Subsequent cycles require only 3 hours each
Keep your completion records on hand - LARA can audit continuing education compliance, and missing documentation is a preventable problem. Also worth noting: a company license and its qualifying officer's individual license are maintained and renewed separately, so one doesn't automatically keep the other current.
Who Actually Needs This Credential
The Residential Builder license is the baseline credential for anyone running or planning to run a residential construction business in Michigan - general contractors building new homes, remodelers taking on structural work, and business owners who need to legally sign contracts and pull permits as a licensed builder. It's distinct from specialty trade licenses and from the Maintenance & Alteration Contractor license, which covers a narrower scope of repair and alteration work.
If you're deciding whether the investment of time and money in prelicensure education, exam fees, and ongoing renewal makes sense for your career path, Is the MI-RB Certification Worth It? Complete ROI Analysis 2026 walks through that decision, and MI-RB Salary Guide 2026: Complete Earnings Analysis looks at earning potential for licensed builders.
Preparing Around the Domain Weights
Generic study techniques only help if you apply them to the exam's actual weight distribution. Since Carpentry (16 questions), Plans/Specifications/Estimating (14 questions), Insurance/Bonds/Liens (11 questions), and Excavation/Sitework (11 questions) are the four heaviest single domains, a study plan that spends equal time on all 23 domains is inefficient.
Heaviest Practice/Trade Domains
- Carpentry framing and finish work fundamentals
- Plans, Specifications and Estimating reading and takeoff basics
- Excavation/Sitework grading and drainage sequencing
Heaviest Business and Law Domains
- Regulatory and Statutory Requirements (13 questions)
- Insurance, Bonds and Liens (11 questions)
- Contracts (7 questions)
Mid-Weight Trade Domains
- Footings and Foundation Walls, Masonry, Roofing, Concrete
- Safety and Employee Protection Including MIOSHA
Timed Full Review
- Full-length timed practice runs under the 240-minute limit
- Light-weight domains as quick review only (Ventilation, Specialties)
Run practice questions under real time pressure using our practice test platform, since managing 160 questions in 240 minutes is as much a pacing skill as a knowledge test. A structured week-by-week plan with more detail is in MI-RB Study Guide 2026: How to Pass on Your First Attempt, and a condensed version of must-know facts is available at MI-RB Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Once you've locked in LARA approval, check MI-RB Exam Dates 2026: Testing Windows, Deadlines & Scheduling to plan your test date against the one-year application window, and browse practice questions organized by domain to target your weakest areas before test day.
Frequently Asked Questions
No. On this site, MI-RB refers specifically to the Michigan Residential Builder License Examination administered by PSI on behalf of LARA's Bureau of Construction Codes. It's a state licensing exam, not a national voluntary certification.
There are 160 scored multiple-choice questions (50 Business and Law, 110 Practice/Trade), plus up to 10 unscored experimental questions. You have 240 minutes total.
No. Business and Law and Practice/Trade are administered and scored as one combined examination, including on retakes, so a retake covers the full 160-question test again.
You need 116 correct answers out of 160 scored questions, equal to 72.5%.
Yes. Each of your first two three-year renewal cycles requires 21 continuing-education hours; every renewal cycle after that requires only 3 hours.