Michigan Building Inspector License (B2
Residential & B1 Commercial) – Practice Exam
Questions & Answers (2026 Edition)
.
SECTION 1: ADMINISTRATION & ENFORCEMENT (Questions 1–15)
Q1. Under the Michigan Residential Code (MRC), what is the minimum size requirement for a
habitable room (excluding kitchen)?
A) 70 square feet
B) 100 square feet
C) 120 square feet
D) 150 square feet
Correct Answer: A (70 sq ft)
Rationale: MRC Section R304.1 requires habitable rooms (except kitchens) to have a floor area
of not less than 70 square feet. Kitchens have no minimum area requirement, and rooms with
sloping ceilings have additional height requirements .
Q2. A builder requests a permit for a detached garage that is 1,200 square feet. Who is
authorized to issue this permit?
A) The local building official only
B) The State Fire Marshal
C) A registered design professional
D) The Michigan Department of Licensing and Regulatory Affairs (LARA)
Correct Answer: A (The local building official only)
Rationale: The local building official (or their authorized representative) has jurisdiction to issue
permits for construction within their municipality. This includes residential accessory structures
like garages .
Q3. Which of the following is NOT a valid method to determine footing depth in Michigan?
A) Using the prescriptive frost depth table in the MRC
B) Using local historical weather data without soil analysis
C) Engineered design by a structural engineer
D) Extruded polystyrene foam (EPS) Frost-Protected Shallow Foundation (FPSF) method
Correct Answer: B (Local historical weather data without soil analysis)
Rationale: To prevent frost heave, footing depth is determined by MRC Table R403.1(1) (42
inches minimum in Michigan), engineered design, or FPSF methods. General historical weather
data is not a code-approved substitute .
, Q4. The International Code Council (ICC) revises the model codes every three years. When
does Michigan typically adopt these updates?
A) Immediately upon release by the ICC
B) Automatically within 6 months
C) Via legislative action and rule-making, often with delays
D) Never; Michigan writes its own unique code independent of ICC
Correct Answer: C (Via legislative action and rule-making, often with delays)
Rationale: Unlike some states, Michigan adopts building codes through a formal legislative and
rule-making process. There is often a significant time lag between ICC publication and state
adoption .
Q5. What is the maximum allowable floor area for a building that can be designed under the
Michigan Residential Code (versus requiring the more complex Michigan Building Code)?
A) 1,000 square feet
B) 2,500 square feet
C) 4,000 square feet
D) No limit, based on number of stories
Correct Answer: D (No limit, based on number of stories and units)
Rationale: The MRC applies to detached one- and two-family dwellings and townhouses up to
three stories. There is no strict square footage limit; rather, limits are based on building height,
use, and number of dwelling units .
Q6. An inspector issues a "Stop Work Order." Under what condition is this most appropriate?
A) The permit fee has not yet been paid
B) Work is being performed without a required permit
C) The contractor arrived 30 minutes late
D) The homeowner requests an inspection
Correct Answer: B (Work is being performed without a required permit)
Rationale: Stop work orders are issued when work is being done without a permit, in violation of
code, or poses an immediate safety hazard. Administrative issues like late fees require different
remedies .
Q7. How long is a Michigan building inspector license valid before renewal is required?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Correct Answer: C (3 years)
Residential & B1 Commercial) – Practice Exam
Questions & Answers (2026 Edition)
.
SECTION 1: ADMINISTRATION & ENFORCEMENT (Questions 1–15)
Q1. Under the Michigan Residential Code (MRC), what is the minimum size requirement for a
habitable room (excluding kitchen)?
A) 70 square feet
B) 100 square feet
C) 120 square feet
D) 150 square feet
Correct Answer: A (70 sq ft)
Rationale: MRC Section R304.1 requires habitable rooms (except kitchens) to have a floor area
of not less than 70 square feet. Kitchens have no minimum area requirement, and rooms with
sloping ceilings have additional height requirements .
Q2. A builder requests a permit for a detached garage that is 1,200 square feet. Who is
authorized to issue this permit?
A) The local building official only
B) The State Fire Marshal
C) A registered design professional
D) The Michigan Department of Licensing and Regulatory Affairs (LARA)
Correct Answer: A (The local building official only)
Rationale: The local building official (or their authorized representative) has jurisdiction to issue
permits for construction within their municipality. This includes residential accessory structures
like garages .
Q3. Which of the following is NOT a valid method to determine footing depth in Michigan?
A) Using the prescriptive frost depth table in the MRC
B) Using local historical weather data without soil analysis
C) Engineered design by a structural engineer
D) Extruded polystyrene foam (EPS) Frost-Protected Shallow Foundation (FPSF) method
Correct Answer: B (Local historical weather data without soil analysis)
Rationale: To prevent frost heave, footing depth is determined by MRC Table R403.1(1) (42
inches minimum in Michigan), engineered design, or FPSF methods. General historical weather
data is not a code-approved substitute .
, Q4. The International Code Council (ICC) revises the model codes every three years. When
does Michigan typically adopt these updates?
A) Immediately upon release by the ICC
B) Automatically within 6 months
C) Via legislative action and rule-making, often with delays
D) Never; Michigan writes its own unique code independent of ICC
Correct Answer: C (Via legislative action and rule-making, often with delays)
Rationale: Unlike some states, Michigan adopts building codes through a formal legislative and
rule-making process. There is often a significant time lag between ICC publication and state
adoption .
Q5. What is the maximum allowable floor area for a building that can be designed under the
Michigan Residential Code (versus requiring the more complex Michigan Building Code)?
A) 1,000 square feet
B) 2,500 square feet
C) 4,000 square feet
D) No limit, based on number of stories
Correct Answer: D (No limit, based on number of stories and units)
Rationale: The MRC applies to detached one- and two-family dwellings and townhouses up to
three stories. There is no strict square footage limit; rather, limits are based on building height,
use, and number of dwelling units .
Q6. An inspector issues a "Stop Work Order." Under what condition is this most appropriate?
A) The permit fee has not yet been paid
B) Work is being performed without a required permit
C) The contractor arrived 30 minutes late
D) The homeowner requests an inspection
Correct Answer: B (Work is being performed without a required permit)
Rationale: Stop work orders are issued when work is being done without a permit, in violation of
code, or poses an immediate safety hazard. Administrative issues like late fees require different
remedies .
Q7. How long is a Michigan building inspector license valid before renewal is required?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Correct Answer: C (3 years)
