Smog Check Inspector Exam CA
2025/2026 | All Possible Questions and
100% Verified Answers
1. What is the primary purpose of the California Smog Check Program?
• A) Ensure vehicles are properly insured
• B) Reduce air pollution caused by motor vehicles
• C) Improve air quality by identifying and repairing vehicles that emit
excessive pollutants
• D) Verify vehicle odometer readings
Explanation: The core mission of the program is to find and fix high-emitting
vehicles, directly reducing pollution from millions of vehicles on the road.
2. Which government agency manages and administers the Smog Check
Program?
• A) California Highway Patrol (CHP)
• B) Department of Motor Vehicles (DMV)
• C) California Air Resources Board (CARB)
• D) Bureau of Automotive Repair (BAR)
Explanation: The BAR is the primary state agency responsible for licensing
stations and technicians, overseeing inspections, and enforcing program
regulations.
,3. What model year gasoline vehicles are subject to California's Smog Check
program?
• A) 1990 and newer
• B) 1985 and newer
• C) 1976 through current model year
• D) 2000 and newer
Explanation: Vehicles from the 1976 model year onward are required to
participate. This is a key eligibility rule regularly tested on the exam.
4. What model year diesel vehicles are subject to the program?
• A) 2000 through current model year
• B) 1995 through current model year
• C) 1998 through current model year (with a GVWR of 14,000 lbs or
less)
• D) 2005 and newer with any GVWR
Explanation: Diesel vehicles from 1998 onwards, as long as they are under 14,000
lbs GVWR, must be tested. This is a common question on the scope of the
program.
5. What are the two main categories of Smog Check stations?
• A) Gold Shield and STAR
, • B) Private and Government
• C) Test-Only and Test-and-Repair
• D) Level 1 and Level 2
Explanation: Stations are designated as either Test-Only or Test-and-Repair. This
basic distinction determines if they can both diagnose/repair and test, or only
perform tests.
6. Which of the following vehicles is generally exempt from a biennial (every-
other-year) Smog Check?
• A) 2002 gasoline sedan
• B) 2008 diesel truck
• C) 1975 model year vehicle
• D) 1998 model year motorcycle
Explanation: All gasoline vehicles from 1976 to the present require inspections.
Therefore, a 1975 model year vehicle is exempt, making this a straightforward
recall question.
7. What are the three main inspection program areas in California?
• A) Visual, OBD, and Tailpipe
• B) Northern, Southern, and Central
• C) Enhanced, Basic, and Change of Ownership
• D) Gold, Silver, and Basic
, Explanation: These three categories determine the specific types of tests required
for a vehicle, based on its registration area and purpose. This is a foundational
concept for the program's structure.
8. What action should be taken if it is determined that the underhood
emissions label does not match the engine?
• A) Immediately fail the vehicle for tampering
• B) Compare the label to an online database
• C) Proceed with the test as normal but note the discrepancy
• D) Determine if either the hood or engine has been changed, and consult
the necessary reference guide
Explanation: This is not an automatic failure. The inspector is required to use the
BAR's reference materials (like the Engine Change and SPCSN Guide) and the
vehicle's VIN and equipment to determine if the installed configuration is legal.
9. A vehicle is presented for testing with a replaced hood and a missing
underhood label. What should the inspector do?
• A) Reject the vehicle until a new label is obtained
• B) Fail the vehicle immediately for missing equipment
• C) Consult the ECS manual to determine the required equipment and
timing settings
• D) Cancel the test and send the customer to a dealership
2025/2026 | All Possible Questions and
100% Verified Answers
1. What is the primary purpose of the California Smog Check Program?
• A) Ensure vehicles are properly insured
• B) Reduce air pollution caused by motor vehicles
• C) Improve air quality by identifying and repairing vehicles that emit
excessive pollutants
• D) Verify vehicle odometer readings
Explanation: The core mission of the program is to find and fix high-emitting
vehicles, directly reducing pollution from millions of vehicles on the road.
2. Which government agency manages and administers the Smog Check
Program?
• A) California Highway Patrol (CHP)
• B) Department of Motor Vehicles (DMV)
• C) California Air Resources Board (CARB)
• D) Bureau of Automotive Repair (BAR)
Explanation: The BAR is the primary state agency responsible for licensing
stations and technicians, overseeing inspections, and enforcing program
regulations.
,3. What model year gasoline vehicles are subject to California's Smog Check
program?
• A) 1990 and newer
• B) 1985 and newer
• C) 1976 through current model year
• D) 2000 and newer
Explanation: Vehicles from the 1976 model year onward are required to
participate. This is a key eligibility rule regularly tested on the exam.
4. What model year diesel vehicles are subject to the program?
• A) 2000 through current model year
• B) 1995 through current model year
• C) 1998 through current model year (with a GVWR of 14,000 lbs or
less)
• D) 2005 and newer with any GVWR
Explanation: Diesel vehicles from 1998 onwards, as long as they are under 14,000
lbs GVWR, must be tested. This is a common question on the scope of the
program.
5. What are the two main categories of Smog Check stations?
• A) Gold Shield and STAR
, • B) Private and Government
• C) Test-Only and Test-and-Repair
• D) Level 1 and Level 2
Explanation: Stations are designated as either Test-Only or Test-and-Repair. This
basic distinction determines if they can both diagnose/repair and test, or only
perform tests.
6. Which of the following vehicles is generally exempt from a biennial (every-
other-year) Smog Check?
• A) 2002 gasoline sedan
• B) 2008 diesel truck
• C) 1975 model year vehicle
• D) 1998 model year motorcycle
Explanation: All gasoline vehicles from 1976 to the present require inspections.
Therefore, a 1975 model year vehicle is exempt, making this a straightforward
recall question.
7. What are the three main inspection program areas in California?
• A) Visual, OBD, and Tailpipe
• B) Northern, Southern, and Central
• C) Enhanced, Basic, and Change of Ownership
• D) Gold, Silver, and Basic
, Explanation: These three categories determine the specific types of tests required
for a vehicle, based on its registration area and purpose. This is a foundational
concept for the program's structure.
8. What action should be taken if it is determined that the underhood
emissions label does not match the engine?
• A) Immediately fail the vehicle for tampering
• B) Compare the label to an online database
• C) Proceed with the test as normal but note the discrepancy
• D) Determine if either the hood or engine has been changed, and consult
the necessary reference guide
Explanation: This is not an automatic failure. The inspector is required to use the
BAR's reference materials (like the Engine Change and SPCSN Guide) and the
vehicle's VIN and equipment to determine if the installed configuration is legal.
9. A vehicle is presented for testing with a replaced hood and a missing
underhood label. What should the inspector do?
• A) Reject the vehicle until a new label is obtained
• B) Fail the vehicle immediately for missing equipment
• C) Consult the ECS manual to determine the required equipment and
timing settings
• D) Cancel the test and send the customer to a dealership
