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The school buses operated by the Transportation department of the Mt. Diablo Unified School District travel a 150 square mile radius each day. They presently transport over 4700 regular and Special Education students each day to 49 school sites and centers. The fleet of 104 buses drives over 1.2 million miles a year. The Transportation department also transports students on over 300 athletic trips and over 1,500 field trips each year.


The following services are provided by the Transportation department:

  • Special Education: Busing for handicapped students
  • Special Trips: Field Trips, athletic trips, etc.
  • Maintenance of all district-owned vehicles
  • Fuel dispensing and monitoring
  • Training programs for school bus drivers
  • Safety: School bus safety and evacuation programs for all K-5 grade students
  • Mt. Diablo High School students 



Dispatch Office


925-825-7440     ext. 3710



Safe Seating - Bus Capacity


According to 13 CCR 1217: “…the number of passengers shall not exceed the number of safe and adequate seating spaces…” MDUSD has set the following guidelines in order to assist schools/departments in maintaining safe seating on district school buses when planning trips:


Pre-kinder to 4th grade: Three passengers per seat up to 90% of the maximum seating capacity (rounded down to the nearest whole number). Adult chaperones may limit the seating capacity and can be configured two to a seat.


5th grade to Adult: Two passengers per seat.


In no event will the driver allow more passengers and equipment to exceed the safe seating and the maximum weight rating of the vehicle he or she is in charge of. The driver has the authority and discretion to reduce or limit passengers and equipment in order to maintain a safe control of the vehicle.


Special Trip Request Instructions


Field Trip Portal http://transportation-fs/triptracker/Login.aspx

Contact Dispatch at ext. 3710 for field trip questions.