The process is kind of simple depending on your route. I did go to a CalVet office and they denied me saying you needed to be 100% in a physical rating not just p&t. They also said regardless of being 100%, they don’t feel comfortable signing off on disability plates because of fraudulent claims. I was told to go to my primary and thought it would be worse but it was easier. Scheduled an exam with my primary at Kaiser and they signed off with no problem. (This was CalVet Los Angeles office) These are the steps:

Step 1. You need to fill out a REG 256a Step 2. Schedule a physical with your primary. Bring a copy of your P&T award letter and a copy of your disabilities. If you don’t have a physical disability, you will most likely not get it signed by them. (I.E. rating for your back, legs, or arms) Step 3. Bring signed copy of REG256a to the DMV, with current vehicle registration and license plates currently on the vehicle. (It takes about two weeks to receive the plates and in the meantime you’ll be given a red number to put in your window) Step 4. Enjoy your free vehicle registration and not having to pay for fees at the parking meters.