Boulder County Assessor’s Office will be closed Thursday, Nov. 30. The offices will reopen Monday, Dec. 4.

Auto Insurance Requirements

Appointments now required for in-person visits. Additionally, registration renewals need to be completed out of office. Options include online, by mail or drop box, or at a self-service kiosk. Read about these changes (including benefits, and FAQs). Información en español.

Auto Insurance Requirements

Vehicle Registration

  • Vehicles must be covered by auto insurance before they can be registered in Colorado, even for temporary permits.
  • Insurance must be valid on the day you register. This means you can purchase insurance for a vehicle before it is even titled in your name.
  • You may use out-of-state insurance to register a vehicle in Colorado, but it is recommended you obtain Colorado insurance before renewing your registration. If using out-of-state insurance, you must provide proof that it meets Colorado’s minimum standards ($25,000 for bodily injury or death to any one person in an accident; $50,000 for bodily injury or death to all persons in any one accident; $15,000 for property damage in any one accident). This proof can be found on a declarations page provided by the insurance company.
    • If you do not obtain Colorado insurance, you will not be able to access online services at, at a kiosk or over the phone.
  • If state records indicate a vehicle is not insured in Colorado, you must provide proof of insurance at the time of registration.

Registration Renewal

  • You must provide proof of insurance if:
    • Indicated on your renewal postcard, or
    • You registered your vehicle using out-of-state insurance. To renew your registration you must provide proof of Colorado insurance.

Proof of Insurance

Boulder County Motor Vehicle must verify insurance with one of the following items to register a vehicle:

  • Current insurance card for the vehicle
  • Insurance policy, declaration or binder
  • Letter from the insurance provider on company letterhead
  • Proof of self-insurance for the vehicle or owner

Proof of insurance must include the following:

  • Year
  • Make
  • Vehicle Identification Number (VIN)
  • Effective and expiration dates

Contact Us

Motor Vehicle Division

**New as of Jan 4, 2021**
7:30 a.m. – 5:00 p.m. Mon-Thurs.
CLOSED Fridays
Online Contact Form
Contáctenos - Formulario en línea

Phone: 303-413-7710

Fax: 303-413-7725 (Boulder office)
Fax: 303-413-7002 (Lafayette office)
Fax: 303-678-6126 (Longmont office)


Boulder: 1750 33rd Street
Map & Directions

Longmont: 529 Coffman Street
Map & Directions

Lafayette: 1755 S. Public Road
Map & Directions

Mailing Address

1750 33rd Street, Suite 100
Boulder, CO 80301