Individual states have until Jan 15?, 2012 to either adopt the newest MUTCD intact; or make a case for why they are not adopting certain sections and why.

California may not have yet included the BMUFL and plan to; they have been in use in San Francisco in the version Degnaw posted for some time, and can't see a reason for CALTRANS or the CA regulatory committee tasked with this stuff to refuse them.