- Call the International Registration Plan phone center at 303-205-5608
- Fax International Registration Plan at 303-205-5981.
Operating Authority
Public Utilities Commission
(303) 894-2000
Clean Air Act
Motor Vehicle Emissions Section
(303) 205-5603
Commercial Drivers License
Motor Vehicle CDL Section
(303) 205-5983
Intelligent Transp. Systems
CDOT
(303) 757-9801
Efficiency Act (*ISTEA)
CDOT
(303) 757-9801
Interstate Registration
Title and Registration Section
(303) 205-5608
Intrastate Registration
Motor Vehicle Registration Section
(303) 205-5608
County Registration Offices
Office Locations
Longer Combination Vehicles
CDOT Extra Legal Permitting
(303) 757-9539
Unified Carrier Registration (UCR)
Public Utilities Commission
(303) 894-2000
Interstate Fuel Tax Agr. (IFTA)
Fuel Section
(303) 205-8205