Boulder County enacts Stage 1 fire restrictionsNews release

Motorcycles, RVs, and Trailers
Motorcycle with sunset in background

Motorcycle registration

Motor home with starry night sky

RVs and Motor Homes

Trailers in parking lot

Trailer Registration

  • Colorado law requires that all trailers be titled, registered, and plated.
  • Trailers from Colorado: Visit one of our offices and bring Secure & Verifiable ID, the Colorado title, and paperwork if purchased from a Colorado dealer.
  • Out-of-State or homemade/kit trailers: Visit our Trailer page for registration instructions.

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: 1376 Miners Drive
Map & Directions

Mailing Address

1750 33rd Street, Suite 100
Boulder, CO 80301