To add personalized plates and disabled parking privileges, continue to page 2.
Where to send: all plates are available from the Special Plate Unit (mail only).
Vehicle licensing offices: plates available there: Pearl Harbor and Armed Forces only; take or mail this form to any vehicle licensing office.
Trailer plates: plates with an * are not available as trailer plates.
Step 4 (personalized plate): complete ONLY if requesting a personalized plate; allow at least 8 weeks to receive your plates.
| Question | Answer |
|---|---|
| Form Name | TD-420-500 |
| Form Length | 2 pages |
| Fillable? | Yes |
| Fillable fields | 54 |
| Avg. time to fill out | 9 min |
| Edition | R/10/23 |
| Where to send | Special Plate Unit, Dept of Licensing, PO Box 9909 Olympia, WA 98507-8500 (mail only), with the required documents |
| Sign | When completed, print this form and sign |
| Matches the agency's file | Yes, checked October 2, 2026 |
| Other names | TD-420-500, TD 420 500, TD420500, 420-500, 420/500, Military License Plate Application |
| Official source | TD-420-500 (Rev 10/23), Washington State Department of Licensing |
Form Td 420 500 isn’t the one you’re looking for?