To renew your vehicle registration by mail, please send the following to Motor Vehicle Division, 1750 33rd Street, Suite 100, Boulder, CO 80301:
- Postcard renewal notice
- Proof of insurance if it is noted on your postcard renewal notice
- All motor vehicle types must have insurance to be driven on Colorado highways
- Your new physical and mailing addresses if they have changed
- Proof of emissions if it is noted on your postcard renewal notice
- Payment by check, payable to Boulder County Clerk, for the “Total Due” amount on your postcard
- Your postcard will list two amounts: one that includes a State Parks pass and one that excludes a State Parks pass (the difference is $29, the cost of the pass). If you would like a pass, pay the amount that includes the pass. Otherwise, pay the lower amount. Learn more about this pass.
Important Note: Renewals must be received by the last day of the grace period (one month after the expiration month).