California Permit Test Study Guide (2026)

Cover every topic on the California DMV permit test, ranked by how often they show up on the real exam.

The California Driver Handbook is your main study tool. It explains traffic laws, signs, signals, and safe driving rules. Read it more than once. Focus on the sections about right-of-way, speed limits, sharing the road, and DUI laws. The DMV says every question on the test comes from the handbook.

California Speed Limits

Speed limits are one of the most-tested topics on the CA permit exam, and the questions usually test California's statutory default limits -- what the speed is when no sign is posted. Under CVC 22352, California's defaults are 15 mph at railroad crossings, in alleys, and at highway intersections without 100 feet of visibility, and 25 mph in business or residential districts and school zones alike (local authorities may instead set school zones to 20 mph by ordinance). Always obey the basic-speed law (CVC 22350): never drive faster than is safe for current conditions, even under the posted or statutory limit.

Alcohol & BAC Limits

Expect at least one alcohol question on the California permit test. Memorize the three BAC thresholds: 0.08% is the legal limit for drivers age 21 and older, 0.04% is the limit for anyone driving with a commercial driver license (CDL), and California's zero-tolerance threshold for drivers under 21 is 0.01% (CVC 23136) -- the strictest numeric threshold of any state, low enough that even cough syrup can trigger it. No proof of impairment is needed. A violation brings a 1-year license suspension. A BAC of 0.08% or higher brings full adult DUI charges instead.

Right-of-Way Rules

Right-of-way is the single most-missed topic across every state's permit test. The rules are simple once you memorize them. At a 4-way stop, the first vehicle to fully stop goes first; if two arrive together, the driver on the right has the right of way. At an uncontrolled intersection, yield to any vehicle already in the intersection and to the driver on your right. At roundabouts, yield to traffic already circulating and enter only when there is a safe gap. Always yield to pedestrians in any crosswalk, marked or unmarked, and to emergency vehicles with lights and sirens — pull right and stop. When turning left across oncoming traffic, you must yield to oncoming vehicles. Yield does not give you the right of way; it requires you to give it up.

Following Distance & Safety

The California Driver Handbook recommends the 3-second rule: pick a fixed point on the road, wait for the vehicle ahead of you to pass it, then count one-thousand-one, one-thousand-two, one-thousand-three; if you reach the point before finishing the count, you're following too closely. This isn't a fixed legal number -- CVC 21703 just requires a distance that's reasonable and prudent -- so add more time in rain, fog, heavy traffic, or behind a motorcycle or large truck.

Road Sign Colors & Shapes

Road signs on the CA permit test follow the federal Manual on Uniform Traffic Control Devices, so shapes and colors are consistent across the country. Memorize the shapes first: octagon always means stop, downward triangle means yield, diamond means warning, pentagon marks a school zone, round warns of a railroad crossing, and horizontal rectangle is a guide sign. Then learn the colors: red is stop or prohibition, yellow is general warning, orange is construction, green is directions and exits, blue is driver services, brown is recreation, and fluorescent yellow-green is for schools and pedestrians. Practice identifying signs by shape and color alone — see the full visual cheat sheet on our California road-signs page.

Key California Numbers to Memorize

If you only remember a handful of facts going into the test, make it these. Every one of them maps to questions that have appeared on the real CA exam.

Parking Rules

Parking questions on the California permit test cover two patterns everywhere. For parallel parking, your wheels should be no more than 12 inches from the curb. For hill parking, the kerb rule decides which way your front wheels point: facing downhill (with or without a curb), turn the wheels toward the curb; facing uphill with a curb, turn the wheels away from the curb so they rest against it; facing uphill with no curb, turn the wheels toward the edge of the road. Always set the parking brake and leave the car in park (or in low gear with a manual).

California's no-parking zones you must memorize: within 15 feet of a fire hydrant (CVC 22514), within 15 feet of a fire station driveway, never on a marked or unmarked crosswalk, never within an intersection, and never on a railroad track or within 7.5 feet of the nearest rail (CVC 22521).

GDL Restrictions (CA)

California's instruction permit: hold it at least 6 months and log 50 hours of supervised driving, including 10 at night. Unlike most states, California sets no curfew or passenger limit during the permit phase itself -- but you may never drive alone, and your supervisor must specifically be a parent, guardian, spouse, or another licensed driver 25 or older (not just any licensed 21+ adult). After passing the driving test, the provisional license carries two restrictions for a full 12 months (not split into two 6-month tiers like most states): no driving between 11 p.m. and 5 a.m., and no passengers under 20 outside your immediate family. Expect 1-3 GDL questions on the CA exam.

DUI & Drug Laws

DUI questions go beyond the BAC limits in Section 2. Three concepts you must know: implied consent means refusing a chemical test triggers automatic license suspension on top of any DUI charge. Prescription and over-the-counter drugs can also impair driving — antihistamines, sleep aids, painkillers, and some cold medicines list "do not operate heavy machinery" warnings, and driving impaired by them is a DUI even if you have a valid prescription. Marijuana — even where state-legal — is treated like alcohol for driving: any detectable impairment can result in a DUI, and edibles can take 1–3 hours to peak. The only safe BAC and the only safe THC level for driving is zero. There is no quick way to sober up; only time will lower your BAC.

Now Test What You've Studied

Five questions pulled at random from our California question bank — a mix of road signs, traffic laws, and right-of-way. Answer to see the correct choice and a short explanation. For a full timed exam, take the free practice test.

California Study Guide FAQ