California Association of School Transportation Officials


Please choose your membership level you wish to sign up for. This is available for Individual, Agency or Sustaining membership. During the sign up process, you will have the opportunity to opt-in to be listed in the directory online. Once you complete the application process, you will receive an email upon approval.  

Payment Information:

You may pay by Visa/MasterCard, Check, Cash or Purchase Order. 

If paying by check, cash or purchase order, please choose "INVOICE ME" at the payment section. Your membership will start when payment has been received by CASTO.

Payroll Deduction: On payment section, please choose "INVOICE ME"

Level of memberships:

Official Membership (1-6): 

Transportation Director/Supervisor (1), Maintenance Supervisor/Foreman (2), Dispatcher/Scheduler (3), Instructor/Trainer (4), Head Driver/Leadman (5), CHP Officer/State Rep. (6) 

Professional / Associate Membership (7-11):

Bus Driver (7), Mechanic (8), Secretary (9), Manufacturer,/Sales Rep/Consultant (10), School Official/PTA (11)

Person(s) interested in School Transportation Safety (12):

Persons Interested in School Trans. Safety (12)

Retired Member (13-14):

Retired Official (13), Retired Professional (14)


This section is available to any School Districts, Private Schools or Contractors


This section is available to any Distributor related to school buses (i.e. bus manufactures, software, vehicle parts, fuel)

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