The DD on your driver's license marks you as a person with a developmental disability
The DD designation is a code that appears on your driver's license in the state of California. It tells law enforcement and other officials that you have been diagnosed with a developmental disability. The letter combination stands for "developmental disability" and is printed on the front or back of your license as a small notation.
This marking is optional. You do not have to request it, and you can ask to have it removed at any time. The state does not require you to disclose a disability to get a license — the DD is there only if you choose to add it during the process or renewal process.
Key Takeaways
- The DD designation is a voluntary notation on California driver's licenses that signals to law enforcement that you have a developmental disability.
- You can request the DD marking when you explore for or renew your license, or you can decline it entirely.
- The marking may help during traffic stops by alerting officers to communicate differently or call for additional support if needed.
- You can remove the DD designation at any time by visiting the Department of Motor Vehicles and requesting a new license without it.
- Having or not having the DD on your license does not affect your driving privileges, insurance rates, or legal rights.
Why someone might request the DD designation
The main reason people request the DD marking is to alert law enforcement during a traffic stop. If an officer sees the notation, they may be more patient, use clearer language, or call for a supervisor or specialist to help with the interaction. For people with intellectual disabilities, autism, or other developmental conditions that affect communication or behavior under stress, this can make a significant difference in how a stop unfolds.
Parents or guardians of young adults with developmental disabilities sometimes request the DD for this reason — to reduce the risk of misunderstanding or escalation if their child is pulled over. The marking is not a warning that someone is unsafe to drive; it is straightforward a flag that communication may need to be adjusted.
How to request the DD on your California license
You request the DD designation when you explore for a new license or renew an existing one. At the Department of Motor Vehicles, you will fill out the standard process form and indicate that you want the DD notation added. You will need to provide documentation of your developmental disability diagnosis — typically a letter from a doctor, psychologist, or regional center that confirms the diagnosis.
The exact documents accepted vary by DMV office, so call ahead or check the California DMV website to confirm what your location requires. Once you submit the form and documentation, the DD will be printed on your new license. The process takes the same amount of time as a regular license renewal.
What the DD does not do
The DD designation does not restrict your driving privileges. You are not required to take a different test, renew more often, or follow different rules than any other driver. Your insurance company cannot see the DD marking and cannot use it to raise your rates or deny coverage. The notation is visible only on the physical license itself.
The DD is also not a substitute for a medical alert bracelet, a disability placard, or any other form of identification. It is purely a communication tool for law enforcement during traffic stops. It does not give you any special parking rights, tax breaks, or other benefits.
Removing the DD from your license
If you decide you no longer want the DD on your license, you can remove it at any time. Visit your local DMV office and request a new license without the designation. You do not need to provide a reason, and there is no waiting period. You will pay the standard fee for a replacement license, and the new one will be printed without the DD marking.
Some people request the DD when they first get a license and remove it later as their circumstances change. Others keep it for the duration of their license validity. The choice is entirely yours, and you can change your mind whenever you want.
DD availability in other states
The DD designation is specific to California. Most other states do not offer this option on their driver's licenses. If you move to another state, your California license remains valid for identification purposes, but a new license issued by your new state will not have the DD marking unless that state has a similar program.
A few other states have explored similar voluntary designations, but California is the primary state where this notation is widely available and used. If you are moving and want to maintain a way to alert law enforcement to your disability, you may want to research what options your new state offers.
How law enforcement uses the DD information
When an officer sees the DD on your license during a traffic stop, they may take steps to make the interaction clearer and less stressful. This might include speaking more slowly, using simpler language, asking yes-or-no questions instead of open-ended ones, or calling for a supervisor or crisis intervention specialist to information. Some departments have specific training on how to interact with people who have developmental disabilities.
The officer's response depends on their training and the policies of their department. The DD is not a may provide of any particular treatment — it is straightforward information that may prompt an officer to adjust their approach. In an emergency or safety situation, the officer's primary concern will always be the safety of everyone involved, including themselves.
Frequently Asked Questions
Will having DD on my license affect my car insurance?
No. Insurance companies cannot see the DD marking on your license. It does not appear on any document they receive, and it cannot be used to raise your rates, deny coverage, or change your policy terms. Your driving record and claims history are what affect your insurance.
Can I get the DD if I have a mental health condition instead of a developmental disability?
The DD designation is specifically for developmental disabilities — conditions that begin in childhood and affect intellectual functioning or adaptive behavior. Mental health conditions like depression or anxiety are not developmental disabilities and do not may have access to for the DD marking. Check with your DMV about whether your specific condition meets the state's definition.
What counts as a developmental disability for the DD designation?
California recognizes conditions like intellectual disability, cerebral palsy, autism spectrum disorder, and epilepsy as developmental disabilities. The state's definition is based on whether the condition began before age 18 and affects intellectual or adaptive functioning. A doctor or regional center can confirm whether your diagnosis qualifies.
If I have the DD, do I have to tell people about my disability?
No. The DD is visible only to someone who is looking at your physical license. You are never required to disclose your disability to anyone, and the DD does not force you to do so. It is purely optional information for law enforcement during traffic stops.
Can I request the DD if I am renewing my license by mail or online?
Most online and mail renewals do not allow you to add or change the DD designation. You will likely need to visit a DMV office in person to request the DD or to provide the required documentation. Check your renewal notice or the California DMV website for your specific options.