Youth and seniors can ride the train for free! From April 1st until June 30th, 2025, youth ages 18 and under, and seniors 65 and older, may board any SMART train, any day of the week and ride fare free. Approved late last year, the program is designed to attract these age groups to using SMART as well as foster environmental sustainability and enhance mobility in the region. Youth and seniors collectively represent 42-percent of the population of Sonoma and Marin counties, yet currently account for just 25-percent of SMART’s ridership. Train Conductors will check fares as usual; seniors and youth may be asked to show ID to prove age. If you are using a Clipper Card, the fare charge will show up as zero-dollars.