The Transportation Authority of Marin (TAM) is the congestion management agency and transportation sales tax authority of Marin. It was established by Marin County voters to support transportation infrastructure projects and programs that make the County easier, cleaner and safer for all to live, work and play. TAM works with towns, cities, transportation agencies and community groups to identify and prioritize transportation needs and distribute local, state and federal funds. Marin is a “Self-Help County", one of 25 in the State. Self-Help Counties are those that have chosen to tax themselves, so they have dedicated voter-approved transportation funding. In addition to providing important funding, our ½-Cent Transportation Sales Tax positions Marin to secure regional, state and federal grants that would otherwise be unavailable to us. TAM coordinates a diverse mix of projects and programs to improve overall mobility in Marin County. These projects include road, highway and interchange work, sidewalk improvements, Safe Routes to Schools, bicycle lanes, transit, paratransit, and alternative commute options.