Practice questions for the California Smog Check Inspector and Repair Technician exams, with timed practice exams that work like the computer-based test. Every answer comes with an explanation and reference.
The Bureau of Automotive Repair (BAR) issues two Smog Check technician licenses, and PSI delivers both exams. Each bank is written to its own exam's scope.
For technicians who perform the inspection itself and need to know exactly what passes, what fails, and why.
For technicians who diagnose and repair emission failures and need to read the data, not just the result.
Pick sections, answer at your own pace, and read the reason and its BAR source after every question.
A full-length exam on a clock with no hints, on a screen laid out like the real test. Review every answer at the end.
Questions you get wrong come back until you get them right. Your score by section shows what to study next.
Questions are drawn from the Smog Check Manual, the Smog Check Reference Guide, the OBD Test Reference and Write It Right. Repair Technician questions also cover standard engine-performance diagnosis.
Complete the training or experience BAR requires and submit your license application.
Once BAR approves you, you'll be cleared to schedule your exam with PSI.
Work through the bank by section, then take timed practice exams until your scores are steady.
Take your exam at a PSI test center, then finish licensing with BAR.
No subscription and no automatic renewal. Every plan gives you 90 days (about 3 months) of full access from the day you buy, enough time to study and sit the exam. You sign in with your account, so it works on any device.
One-time payment · no auto-renewal · secure checkout by Stripe
One-time payment · no auto-renewal · secure checkout by Stripe
One-time payment · no auto-renewal · secure checkout by Stripe
No. Actual exam questions are confidential. Every question in the bank is original and written to cover the same knowledge areas the exam plan lists, so you understand the material rather than memorize answers.
It uses the same format: multiple-choice questions with one best answer, weighted by the exam plan. The Inspector practice exam has 110 questions (90 are scored on the real exam) and the Repair Technician practice exam has 120 (100 are scored on the real exam). The test screen is laid out like a typical computer-based exam, with a timer, flags and a review screen. The 70% target on the score report is a practice goal set by SmogPrep. It is not the official passing score.
No. SmogPrep is an independent study product. PSI administers the exams and BAR issues the licenses. For official requirements, fees and scheduling, go to BAR at bar.ca.gov and to PSI.
Buy the bank for the license on your BAR application. If you plan to hold both licenses, the bundle costs less than buying them separately.
Your purchase is tied to your SmogPrep account, so you can sign in on any device. Practice progress (missed questions and unfinished exams) is saved in the browser you study in.
90 days (about 3 months) from the day you buy. It's a one-time payment with no subscription and no automatic renewal. The date your access ends is shown in the practice section when you're signed in. If you need more time, you can buy again.
Yes. The bank runs in any modern browser on a phone, tablet or computer, so you can study on a break at the shop.
Yes. The question bank helps you prepare for the exam. It does not replace any training or experience BAR requires before you can test.
Your purchases are tied to your account, so you can study on any device.
Payments are processed by Stripe. SmogPrep never sees your card number.