IRP-Contact Us

Audit Information  | Recordkeeping Information  |  International Fuel Tax Agreement (IFTA)  |  Frequently Asked Questions  |  Contact Us

  • Call the International Registration Plan phone center at 303-205-5608
  • Fax International Registration Plan at 303-205-5981.
 
Subject
Agency
Telephone
Operating Authority 
Public Utilities Commission 
(303)894-2000  
Clean Air Act
MV Emissions Section
(303)205-5603
Commercial Drivers License
MV 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
MV Registration Section
County Registration Offices
(303)205-5608
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