Work Zone Mobility and Safety Program
Photo collage: temporary lane closure, road marking installation, cone with mounted warning light, and drum separated work zones.
Office of Operations 21st Century Operations Using 21st Century Technologies

Work Zone Safety and Mobility Rule

final rule on work zone safety and mobility

The Work Zone Safety and Mobility Rule (Rule) was published on September 9, 2004 in the Federal Register. All state and local governments that receive federal-aid funding were required to comply with the provisions of the rule no later than October 12, 2007. The Rule updates and broadens the former regulation at 23 CFR 630 Subpart J to address more of the current issues affecting work zone safety and mobility. The changes to the regulation encourage the broader consideration of the safety and mobility impacts of work zones across project development and the implementation of strategies that help manage these impacts during project delivery.

  • Final Rule Language – Final text of the Rule, as well as the notices of proposed rulemaking.

For information on the Temporary Traffic Control Devices Rule (Subpart K), visit the Regulation and Policy page.