Yolo County Farm Bureau Everyone operating a class C vehicle carrying hazardous material must be trained according to the requirements set forth in Section 172.704(d) of Title 49 CFR. Training is required within 90 days of hire and every three years recurring. Upon completion of this class, attendees will need to submit their own application with a certificate of training to the California Highway Patrol who will then issue the HAM certificate. Once the certificate is obtained from the CHP, it must be submitted along with a medical certificate to the CA DMV with applicable fees. Must be 21 years or older.



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