California Association of School Transportation Officials

All of CASTO's "In-Person" Events have been canceled until March 2021 due to the COVID19 Pandemic.

Contact Us

We are here to help.

Please do not hesitate to call us at 855-CASTO68 (227-8668)

Our mailing address is 


PO Box 348120

Sacramento, CA 95834 | 855.227.8668

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