Stage 2 Fire Restrictions Enacted for Western Boulder County; Stage 1 Fire Restrictions Enacted for Eastern Boulder County.

Boulder County government offices closed Friday, July 3. Trailheads close at 7:30 p.m. on July 4 and reopen at sunrise on July 5.

Wildfire smoke is causing poor air quality. Learn more

Renew by Mail

Boulder County Motor Vehicle offices are open Monday – Thursday, 7:30 a.m. – 5 p.m. Closed Fridays. Appointments are required for in-person services. Registration renewals need to be completed online, by mail or drop box, or at a self-service kiosk and are not an in-person service.

Renew Registration by Mail

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).

Motor Vehicle Division

Contact Us

Motor Vehicle Division

7:30 a.m. - 5 p.m.
Monday - Thursday
Closed Fridays

Motor Vehicle Homepage
Contact Us Form
Contáctenos - Formulario en línea

Phone: 303-413-7710
Fax: 303-413-7706

Office / 24-Hour Drop Box Locations

If submitting paperwork via drop box, please place documents in a folder or envelope marked “Motor Vehicle” and include your contact information.

1750 33rd St., Boulder
24-Hour Drop Box: Stand-alone box outside doors on parking lot side

1755 S. Public Road, Lafayette
24-Hour Drop Box: Slot on exterior wall to the right of the main doors

529 Coffman St., Longmont
24-Hour Drop Box: Stand-alone box outside entrance doors

Mailing Address

1750 33rd St., Suite 100
Boulder, CO 80301

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