Code of Colorado Regulations
600 - Department of Transportation
601 - Transportation Commission and Office of Transportation Safety
2 CCR 601-8 - RULES GOVERNING THE USE OF TUNNELS ON COLORADO STATE HIGHWAYS
Section 2 CCR 601-8-1.00 - Definitions

1.01 "Commercial Vehicle" as set forth in § 42-4-235, C.R.S., shall mean (I) any self-propelled or towed vehicle bearing an apportioned plate or having a manufacturer's gross vehicle weight rating or gross combination rating of ten thousand one pounds or more, which vehicle is used in commerce on the public highways of this state or is designed to transport sixteen or more passengers, including the driver, unless such vehicle is a school bus regulated pursuant to section 42-4-1904, C.R.S., or any vehicle that does not have a gross vehicle weight rating of twenty-six thousand one or more pounds and that is owned or operated by a school district so long as such school district does not receive remuneration for the use of such vehicle, not including reimbursement for the use of such vehicle; (II) any motor vehicle designed or equipped to transport other motor vehicles from place to place by means of winches, cables, pulleys, or other equipment for towing, pulling, or lifting, when such motor vehicle is used in commerce on the public highways of this state; and (III) a motor vehicle that is used on the public highways and transports materials determined by the secretary of transportation to be hazardous under 49 U.S.C. Sec. 5103 in such quantities as to require placarding under 49 CFR parts 172 and 173.

1.02 "Department" or "CDOT" shall mean the Colorado Department of Transportation established pursuant to § 43-1-103, C.R.S.

1.03 "Enforcement Official" shall mean, and is limited to, a peace officer who is an officer of the Colorado State Patrol as described in § § 16-2.5-101 and 114, C.R.S., a certified peace officer who is a certified port of entry officer as described in § § 16-2.5-101 and 115, C.R.S., a peace officer who is an investigating official of the transportation section of the public utilities commission as described in § § 16-2.5-101 and 143, C.R.S., or any other peace officer as described in section § 16-2.5-101, C.R.S. [ § 42-20-103(2), C.R.S.]

1.04 "Hazardous Materials" (also known as "Hazmat") shall mean those materials listed in Tables 1 and 2 of 49 CFR 172.504, excluding highway route controlled quantities of radioactive materials as defined in 49 CFR 173.403(l), excluding ores, the products from mining, milling, smelting, and similar processing of ores, and the wastes and tailing therefrom, and excluding special fireworks when the aggregate amount of flash powder does not exceed fifty pounds. [§ 42-20-103(3), C.R.S.]

1.05 "Motor vehicle" shall mean any self-propelled vehicle that is designed primarily for travel on the public highways and that is generally and commonly used to transport persons and property over the public highways or a low-speed electric vehicle; except that the term does not include low-power scooters, wheelchairs, or vehicles moved solely by human power.

1.06 "Person" shall mean an individual, a corporation, a government or governmental subdivision or agency, a partnership, an association, or any other legal entity; except that separate divisions of the same corporation may, at their request, be treated as separate persons. [§ 42-20-103(6), C.R.S.]

1.07 "Staging" shall mean the parking of a Motor Vehicle or Commercial Vehicle at a specific location to facilitate its safe passage through the Eisenhower-Johnson Memorial Tunnel according to the specific timing requirements of Rule 3.05

1.08 "State Highway" shall consist of the federal-aid primary roads, the federal-aid secondary roads, and the interstate system, including extensions thereof within urban areas. [§ 43-2-201(1), C.R.S.]

1.09 "Tunnel" shall mean enclosed roadways with vehicle access that is restricted to portals regardless of type of structure or method of construction. Tunnels do not include highway bridges, railroad bridges or other bridges over a roadway. Tunnels are structures that require special design considerations that may include lighting, ventilation, fire protection systems, and emergency egress capacity based on the owners' determination.