Justin-Siena High School Corporation is a motor carrier overseen by the California FMCSA. The company physical address is 4026 Maher St, Napa, CA 945582243 US. The mailing address is 4026 Maher St, Napa US. You can contact them by calling (707) 255-0950. The company operates 9 power units. They employ 7 drivers. They became a part of the Motor Carrier Management Information System database on the 13th of April 2015 and their US Department of Transportation number is 2604691. Justin-Siena High School Corporation has specified their type of operation as "intrastate non-hazmat". The carrier is subject to the placardable passenger carrier threshold.