Eight-hour Day

C.R.S. tit. 8, art. 13
in effect

C.R.S. § 8-13-101 Employment declared dangerous

8-13-101. Employment declared dangerous. Employment in all underground mines, underground workings, and smelters is declared to be injurious to health and dangerous to life and limb.

C.R.S. § 8-13-102 Eight-hour day - exceptions

8-13-102. Eight-hour day - exceptions. (1) The period of employment of persons working in all underground mines, underground workings, and smelters may exceed eight hours within a twenty-four-hour period upon the following conditions: (a) The operator of the underground mine, underground workings, or smelter establishes a work plan setting forth the terms and conditions under which the period of employment may exceed eight hours in a twenty-four-hour period; and (b) The operator provides reasonable notice to its employees, except in cases of emergency or upset conditions, of proposed increases in the regular work schedule which would result in a period of employment in excess of eight hours in a twenty-four-hour period. Reasonable notice shall be construed to be not less than one week, during which time affected employees may comment. (2) Nothing in this section shall be construed so as to alter the provisions of any collective bargaining agreement.

C.R.S. § 8-13-102.1 Period of employment - relation to conservation of fuel

8-13-102.1. Period of employment - relation to conservation of fuel. (1) The general assembly hereby finds and declares that in order to give full effect to state programs for the conservation of fuel and not to impede or prevent the execution of any fuel conservation powers the governor may impose pursuant to part 3 of article 20 of title 24, C.R.S., it is necessary to enact this section. The general assembly further finds and declares that it is necessary to enact this section in order for certain industries to support and cooperate with such state programs and powers and to assist their employees in the conservation of fuel by providing opportunity for certain employers to establish four-day workweeks thereby omitting one day of travel to and from work for employees. (2) For purposes of section 8-13-102, "period of employment" means time spent which is directly related to an employee's performance of his primary job duties. "Period of employment" does not include time spent, whether or not compensation is paid, which is not directly related to the employee's performance of his primary job duties, including, but not limited to, meal periods, travel time, rest periods, and waiting time.

C.R.S. § 8-13-103 Penalty for violation

8-13-103. Penalty for violation. Any person, body corporate, general manager, or employer who violates or causes to be violated any of the provisions of sections 8-13-101 and 8-13-102 commits a class 2 misdemeanor. Each day in violation of the provisions of sections 8-13-101 and 8-13-102 shall constitute a separate offense.

C.R.S. § 8-13-104 Eight-hour day for public employees

8-13-104. Eight-hour day for public employees. (Repealed)

C.R.S. § 8-13-107 Firemen - hours of duty

8-13-107. Firemen - hours of duty. It is unlawful for any municipality, or any officer or employee thereof, to require any person holding any position or employment in the fire department of such municipality, except one who may be at any time in command of the department, to be or remain on duty in such employment during any calendar month for periods of time which in the aggregate during such month amount to more than twelve hours for each day in said month. The requiring of more hours of work in cases of conflagrations or similar emergencies shall not be unlawful. This section shall apply to all municipalities having fire departments, whether such municipalities are created under general laws, or by special charter, or by or under the provisions of article XX of the constitution of the state of Colorado.

C.R.S. § 8-13-108 Penalty for violation

8-13-108. Penalty for violation. Any officer, agent, or employee of any municipality who orders, directs, compels, or requires any employee or other person in any such fire department, except one who may be at any time in command of the fire department, to be or remain on duty in such work or employment in any calendar month for a longer time than that provided for in section 8-13-107 except in cases of emergency commits a class 2 misdemeanor.

C.R.S. § 8-13-109 Employment in cement and plaster factories injurious

8-13-109. Employment in cement and plaster factories injurious. (Repealed)

C.R.S. § 8-13-110 Overtime not mandatory

8-13-110. Overtime not mandatory. Nothing in this article shall be construed to mandate overtime for employees in and about cement manufacturing plants and plaster manufacturing plants unless otherwise negotiated by contract.
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-08.docxFetched: 10/6/2026

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