Under current law, if maintenance, repair, or construction activities are occurring or will occur within 4 hours on a portion of a state highway, the Colorado department of transportation (department) is permitted, but not required, to designate the portion of the highway as a highway maintenance, repair, or construction zone. The act: Removes the 4-hour time period relating to maintenance, repair, or construction activities that will occur on a portion of a state highway but maintains the 4-hour time period relating to maintenance, repair, or construction zones that are not on a state highway; and Requires the department to designate a portion of a state highway on which construction activities are occurring as a highway construction zone. APPROVED by Governor June 3, 2024 EFFECTIVE August 7, 2024(Note: This summary applies to this bill as enacted.)