The Federal Highway Administration has released the 2009 edition of the Manual on Uniform Traffic Control Devices (MUTCD), the national standard for traffic signs and road markings.
Cyclists can rejoice at the inclusion of sharrows, or shared lane markings, along with “bikes may use full lane” signs. Now that they’re in the manual, local engineers can feel comfortable using them.
Cyclelicious has a great write-up, with pictures.
Establishing national standards is a slow process (nearly 10 years to get sharrows included). Many thanks to Richard Moeur for sticking with it, and advocating for cyclists in committee.