What the CM1 class lets you drive

A California CM1 driver license is a motorcycle endorsement added to a regular driver license. It does not replace your standard license — it adds the right to operate a motorcycle to whatever vehicle class you already hold. If you have a Class C license (the standard car license), adding CM1 means you can legally ride a motorcycle in addition to driving a car.

The "M" stands for motorcycle. The "1" indicates you can ride any motorcycle, including those with sidecars. Without this endorsement, riding a motorcycle on California roads is illegal, even if you own one and have a regular driver license.

You cannot get a CM1 as a standalone license — it must be added to an existing driver license class. Most people add it to a Class C license, but you can also add it to a Class B (truck), Class A (combination vehicle), or other classes if you hold them.

Key Takeaways

  • CM1 is a motorcycle endorsement that adds to your existing driver license, not a replacement for it.
  • You must pass a written knowledge test, a riding skills test, and a vision test to add CM1 to your license.
  • California requires you to complete a Motorcycle Safety Foundation course or pass the Department of Motor Vehicles riding exam to waive the written test.
  • The total cost is roughly $40 to $50 for DMV fees, plus the cost of the safety course if you choose that route.
  • You can add CM1 at any DMV office that handles license transactions, and the process typically takes one visit.

The written test and how to prepare for it

California requires you to pass a written knowledge test covering motorcycle operation, safety, and traffic laws specific to riding. The test has 30 questions, and you must answer at least 24 correctly to pass. Questions cover topics like braking distance, how to handle a skid, proper lane positioning, and what to do in bad weather.

You have two ways to prepare. The first is to study the California Motorcycle Handbook, which is free and available on the DMV website. The handbook covers everything the test asks about. The second is to take a Motorcycle Safety Foundation (MSF) Basic Rider Course, which is a hands-on class that teaches riding skills and also waives the written test requirement — you still take the riding test, but you skip the written portion.

If you study on your own, schedule your written test at a DMV office. Bring your current driver license, proof of residency, and your Social Security number or Individual Taxpayer Identification Number. The test is administered on a computer at the DMV, and you get your results when ready.

The riding skills test and what the examiner watches for

After you pass the written test (or waive it with an MSF course), you must pass a riding skills test. The DMV examiner watches you operate a motorcycle in a controlled environment — usually a closed course or parking lot — and scores your ability to control the bike, follow instructions, and demonstrate safe riding techniques.

The test takes about 20 to 30 minutes and includes exercises like figure-eights, stopping, turning, and riding in a straight line. The examiner is looking for smooth throttle control, proper braking, correct body positioning, and awareness of your surroundings. You must bring your own motorcycle or use one provided by an MSF course if you took that route.

If you took an MSF Basic Rider Course, you can often transfer your completion certificate directly to the DMV, which waives the riding test entirely. This is the fastest path to getting CM1 added to your license. If you did not take an MSF course, you must schedule a separate riding test appointment at a DMV office that offers them — not all DMV locations do, so call ahead.

Vision test and medical requirements

You must pass a vision test as part of adding CM1 to your license. The test checks that you can see clearly enough to operate a motorcycle safely. You need at least 20/40 vision in each eye, with or without corrective lenses. If you wear glasses or contacts, you must wear them during the test and while riding.

There are no formal medical requirements beyond the vision test, but you should be honest about any physical or mental health conditions that might affect your ability to ride safely. If you have a condition that limits your mobility, balance, or reaction time, discuss it with the DMV examiner before testing.

The MSF course option and why many riders choose it

The Motorcycle Safety Foundation Basic Rider Course is a two-day or three-day class taught by certified instructors. The course covers motorcycle operation, safety techniques, and real-world riding scenarios. Most importantly, completion of an MSF course waives both the written test and the riding skills test at the DMV.

The course costs between $200 and $300 depending on the provider and location. You bring your own motorcycle or use one provided by the school. At the end, you receive a completion certificate that you take to the DMV along with your other documents. The DMV then adds CM1 to your license without requiring you to take either test.

Many riders choose this route because it provides structured instruction from experienced teachers, gives you real practice on a motorcycle before you ride on public roads, and eliminates the uncertainty of the DMV riding test. The course also often qualifies you for an insurance discount with some providers, which can offset the cost.

What documents to bring to the DMV

Bring your current California driver license, proof of residency (a utility bill, lease, or bank statement with your name and address), and your Social Security number or ITIN. If you are under 18, you also need a parent or guardian present with their ID.

If you took an MSF course, bring your completion certificate. If you are taking the written test at the DMV, arrive early — the DMV processes tests on a first-come, first-served basis, and some offices get busy. If you are taking the riding test, bring your motorcycle or arrange to use one from an MSF provider, and wear a DOT-approved helmet and protective gear.

The DMV will take a new photo for your license and process the endorsement. Your updated license with CM1 will be mailed to you within two weeks, or you can request it be printed on-site at some locations.

Cost breakdown and processing time

The DMV fee to add CM1 to your existing license is roughly $40 to $50, depending on whether you are renewing your license at the same time. If you take an MSF course instead of the DMV tests, add $200 to $300 for the course. If you study on your own and take the DMV tests, you only pay the DMV fee.

Processing time is usually one visit if you have all your documents and pass your tests. If you fail a test, you can retake it, but you must wait at least one day before trying again. Your updated license arrives by mail within two weeks, or some DMV offices can print it on-site the same day.

Frequently Asked Questions

Can I ride a motorcycle on public roads while my CM1 process is being processed?

No. You can only ride a motorcycle legally once CM1 is added to your license. Until then, riding on public roads is illegal, even if you have passed all the tests. You can practice on private property with permission, but not on streets or highways.

Do I need to take the written test if I took an MSF course?

No. Completion of an MSF Basic Rider Course waives the written test. You still need to pass the vision test and bring your certificate to the DMV, but you do not sit for the written exam.

What if I fail the riding test?

You can retake it after waiting at least one day. There is no limit to how many times you can try. Each attempt costs the same DMV fee. Many people pass on their second or third attempt after practicing more.

Can I add CM1 to a license that is about to expire?

Yes, but it is usually easier to renew your license and add CM1 at the same time. If your license is expiring soon, ask the DMV whether it makes sense to renew first or add the endorsement to your current license.

Is there an age requirement for CM1?

You must be at least 16 years old to add CM1 to a California driver license. If you are under 18, you need a parent or guardian present at the DMV with their ID.