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.

Effective Jan 1, 2026: There is a $4.50 MV Express Renewal Kiosk fee. Previously, Boulder County paid this fee for residents. However, due to county budget cuts the office can no longer cover this fee.

Online Contact Form

Boulder County is encouraging the public to access services remotely whenever possible. After you complete the form, we will be in touch to let you know if/how your transaction can be completed remotely.

You may also use this form to submit your Proof of Insurance. If doing so in order to complete a vehicle registration / renewal, please make sure to list the best times to reach you. After we receive the insurance, we will need to speak with you in order to complete the registration and take payment over the phone (credit card or check routing information). In additional to trying to call you, we may also reply back to provide you with a window of time to expect our call or arrange a time frame for a call.

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