The Federal Highway Administration has given interim approval under the national Manual on Uniform Traffic Control Devices (MUTCD) for the optional use of green colored pavement in marked bike lanes to boost visibility and alert drivers to where bicycles are expected to operate.

If there’s one state that’s leaned into this trend, it’s Florida. Transportation agencies there have adopted MUTCD-aligned design and installation requirements for green-colored pavement markings on bike lanes and multi-use paths.

Under the MUTCD rules, green is not just decorative. It’s a legitimate traffic control device meant to communicate a reserved space (usually for cyclists) and to increase conspicuity.