Colorado Revised Statutes Title 42. Vehicles and Traffic § 42-20-201. Hazardous materials transportation permit required

Except as otherwise provided in this part 2, no transportation of hazardous materials by motor vehicle which requires placarding under 49 CFR 172 or 173 shall take place in, to, from, or through this state until the department of transportation issues a permit, in accordance with the provisions of this part 2, authorizing the applicant to operate or move upon the public roads of this state a motor vehicle or a combination of motor vehicles which carries hazardous materials. This part 2 does not apply to motor vehicles owned by the federal government, motor vehicles when used to transport to or from the farm or ranch site products used for agricultural production, or farm machinery which is exempted from registration requirements by section 42-3-103, unless such vehicles are used in furtherance of any commercial business other than agriculture. This part 2 applies to motor vehicles owned by the state or any political subdivision thereof; except that such vehicles are exempt from the fees provided in section 42-20-202. The requirements of this part 2 are in addition to, and not in substitution for, any other provisions of law.