PM stands for "Permanent" and marks a vehicle registered to someone with a disability
The letters PM on a license plate indicate that the vehicle's registered owner has a permanent disability and is may have access to to use accessible parking spaces. It is not an abbreviation for a state or a vehicle type — it is a designation that tells parking enforcement and other drivers that this vehicle has the right to park in spaces marked for people with disabilities.
The plate itself looks like a standard license plate but includes the PM letters, usually in a different color or position than the regular registration numbers. Some states print PM directly on the plate; others issue a separate placard that hangs from the rearview mirror. Both serve the same purpose: they signal to parking lot attendants, enforcement officers, and the public that the vehicle is authorized to use disability parking.
This designation is separate from a temporary disability permit, which uses TP instead of PM. The difference matters because PM is permanent — it does not expire — while TP is issued for a set period, usually between three months and two years, depending on the state and the nature of the disability.
Key Takeaways
- PM on a license plate means the vehicle owner has a permanent disability and can legally park in accessible parking spaces.
- PM plates do not expire, unlike TP (temporary) plates, which are issued for a limited time period.
- Each state manages PM registration through its Department of Motor Vehicles, and the rules for obtaining one vary by state.
- Misusing a PM plate — parking in disability spaces without authorization — is illegal and can result in fines and vehicle impounding.
How a vehicle gets a PM designation
To obtain a PM plate or placard, the vehicle's owner must first have a disability information from a licensed physician or medical professional. The specific medical conditions that may have access to vary by state, but they generally include mobility impairments, severe visual impairments, respiratory conditions that limit walking, and neurological conditions that affect movement or balance.
The owner then submits an process to their state's Department of Motor Vehicles, along with the medical certification. Some states require the physician to complete a specific form; others accept a letter from the doctor on letterhead. The DMV reviews the process, and if approved, issues the PM plate or placard. The process typically takes two to four weeks, though this varies by state and how quickly the DMV processes applications.
Once issued, a PM plate is permanent and does not need to be renewed unless the vehicle's registration expires or the owner transfers the vehicle to someone else. If the owner's disability status changes — for example, if a condition improves significantly — they can request that the PM designation be removed, though the DMV will not automatically revoke it.
PM plates versus TP placards: when each is used
A PM plate is issued when a disability is expected to be lifelong or long-term with no anticipated improvement. It appears directly on the license plate itself and does not expire. The owner keeps the same plate as long as they own the vehicle and their disability status does not change.
A TP placard is issued for temporary disabilities — injuries that will heal, conditions expected to improve, or situations where the disability is short-term. The placard hangs from the rearview mirror and displays an expiration date. When that date passes, the placard is no longer valid, and the owner must either reapply if the disability continues or stop using disability parking.
Some people transition from TP to PM if their condition becomes permanent. Others use TP and then return to regular parking once they recover. The distinction matters because using an expired TP placard or a PM plate without authorization is a violation and can result in parking citations, fines, and in some cases, vehicle impounding.
What happens if you park in a disability space without PM or TP authorization
Parking in an accessible space without a valid PM plate or TP placard is illegal in all states. The fines vary widely — some states impose fines between $100 and $250 for a first offense, while others go higher. Repeat violations can result in fines of $500 or more, and some jurisdictions will impound the vehicle if the owner accumulates multiple violations.
Enforcement is typically handled by parking lot attendants, municipal parking enforcement officers, or police. They check the plate or placard against the vehicle's registration to confirm authorization. If there is no valid PM or TP designation, they issue a citation.
The intent of these penalties is to protect accessible parking for people who actually need it. Accessible spaces are limited in number and are designed to be close to building entrances to accommodate people with mobility challenges. When someone without authorization uses these spaces, they reduce availability for people with disabilities who depend on them.
How states differ in PM plate design and rules
While all states use PM to indicate a permanent disability designation, the specific design, format, and rules vary. Some states print PM directly on the license plate in a distinctive color. Others issue a separate placard that displays PM and hangs from the mirror. A few states offer both options, allowing the owner to choose which works best for their situation.
The medical conditions that may have access to for PM also differ by state. Most states accept mobility impairments, severe vision loss, and respiratory conditions that limit walking. Some states also include cognitive disabilities, chronic pain conditions, or neurological disorders if they significantly affect the ability to walk or stand. The best way to know what your state accepts is to contact your state's DMV directly or visit their website.
Renewal rules also vary. In most states, a PM plate does not expire as long as the vehicle registration is current. However, some states require the owner to recertify their disability status every five to ten years, even though the plate itself does not expire. Check your state's DMV website or call their disability services line to confirm the rules in your area.
Transferring or removing a PM designation
If you sell or transfer a vehicle with a PM plate, the new owner cannot use that plate unless they also have a permanent disability and are approved by the DMV. The PM designation is tied to the original owner, not the vehicle. When you sell the car, you must return the plate to the DMV or request a regular replacement plate.
If you no longer need the PM designation — because your disability has improved or resolved — you can request that it be removed. Contact your state's DMV and ask to surrender the plate or placard. You will receive a regular license plate in exchange. There is no penalty for removing a PM designation; it is straightforward a matter of updating your registration status.
If you move to a different state, you will need to register your vehicle in the new state and explore for a PM plate or placard there if you still have a may have access to disability. Each state manages its own disability parking program, so you cannot transfer a PM plate from one state to another.
Frequently Asked Questions
Can someone else drive my car if it has a PM plate?
Yes, anyone can drive a vehicle with a PM plate, but only the registered owner (the person with the disability) can park in accessible spaces. If someone else is driving and parks in a disability space, it is illegal and can result in a citation. The PM designation is for the owner's use, not for anyone who happens to be behind the wheel.
What if my PM plate gets lost or damaged?
Contact your state's DMV and request a replacement. You will likely need to provide your vehicle registration and proof of your disability status, though some states keep this information on file and do not require you to resubmit it. There is usually a small replacement fee, typically between $10 and $25, though some states waive it for disability plates.
Do I have to display my PM plate or placard every time I park?
Yes. If your state issues a placard, it must be visible and hanging from your rearview mirror when you park in an accessible space. If your state prints PM on the plate itself, the plate must be on the vehicle. Parking enforcement officers check for the designation before deciding whether a citation is warranted. Without visible proof, you can be cited even if you are authorized.
Can I use a PM plate in other states?
Most states honor disability plates and placards from other states, but the rules vary. Some states accept any valid PM or TP designation from another state; others require you to register your vehicle locally and obtain their own plate or placard. Before traveling out of state, check the DMV website of the state you are visiting to confirm their policy.
What if I disagree with a citation I received for parking in a disability space?
You have the right to contest the citation. If you have a valid PM plate or TP placard, gather proof — the plate itself, photos, or your DMV registration documents — and follow the citation's instructions for disputing it. This usually involves submitting evidence by mail or appearing before a parking hearing officer. If the citation was issued in error, it can be dismissed.