Maximum hours of service - ready-mix concrete truck operators
C.R.S. § 42-4-2001
in effect42-4-2001. Maximum hours of service - ready-mix concrete truck operators. (1) Any person who operates a commercial motor vehicle solely in intrastate commerce for the purpose of transporting wet, ready-mix concrete need not comply with 49 CFR 395.3 (b). No such person shall drive for any period after:
(a) Having been on duty seventy hours in any seven consecutive days if the employing motor carrier does not operate every day in the week; or
(b) Having been on duty eighty hours in any period of eight consecutive days if the employing motor carrier operates motor vehicles every day of the week.
(2) Within a seven-day workweek all hours of service after sixty hours are voluntary starting the next scheduled workday.
(3) Twenty-four consecutive hours off duty shall constitute the end of any seven or eight consecutive-day period.
(4) Any commercial motor vehicle that transports hazardous materials shall be exempt from this section and shall be subject to the federal hours-of-service limitations in 49 CFR 395 and 350.
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-42.docx#42-4-2001Fetched: 10/6/2026