Operates effective June 15 , 2009 as a weekday - only service .
It will use the HOV lanes along U.S. Highway 101 in Marin County between San Francisco and Santa Rosa .
Operates effective June 15 , 2009 as a weekday - only service , and it will use the HOV lanes along U.S. Highway 101 in Marin County between San Francisco and Santa Rosa .