Emissions Extension Request

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.

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Emissions Extension Request

If an emissions test is required for a vehicle that is temporarily out of state, you may apply online for an Emissions Extension. You may also apply by mail or in-person at one of our DMV branch locations. To apply, provide the following:

  • Complete the emissions extension form (DR 2376) in its entirety
  • Results of passing emissions test, if testing is performed in the state where the vehicle is located.*
  • Copy of current insurance
  • Renewal reminder postcard, if available
  • Registration payment by check or money order made out to Boulder County

* If emissions testing is not performed in the state where the vehicle is located, a VIN verification form (DR 2698) or an equivalent out-of-state form must be completed by either a local law enforcement officer or a motor vehicle employee from the state where the vehicle is currently located. Additionally, the vehicle must be emissions tested within 15 days of returning to Colorado.

You can return this form to a paperwork drop box at any of our locations, to our office via mail, or by email to motorvehicle@bouldercounty.gov. Once your application has been approved, you can renew online or at an MV Express kiosk.

Note: Before renewing online, you will need to change your mailing address to your out of state address before renewing your registration if you’d like the stickers and registration to be sent out of state.

Mail Address:
Boulder County Motor Vehicle Division
Attn: Emissions Extension Requests
1750 33rd Street, Suite 100
Boulder, CO 80301

Contact Us

Motor Vehicle Division

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

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

Locations

Boulder (Main Office):
1750 33rd Street
Boulder, CO 80301
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Lafayette
1755 S. Public Road
Lafayette, CO 80026
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Longmont
529 Coffman Street
Longmont, CO 80501
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Mailing Address

1750 33rd Street, Suite 201
Boulder, CO 80301

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