This might help those of us who wondered if we needed an additional license endorsement to drive our privately operated rigs.
Ca DMV Commercial DL infoWith a Noncommercial Class B License:
any vehicles under Class C
any housecar over 40' but not over 45', with endorsement
With a Basic Class C License:
a 2-axle vehicle with a GVWR of 26,000 lbs. or less
a 3-axle vehicle weighing 6,000 lbs. or less gross
a motorized scooter
any housecar 40' or less
A farmer or employee of a farmer may also drive:
any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,000 lbs. or less if used exclusively in agricultural operations and it is not for hire or compensation.
With a Commercial Class C License:
Any Class C vehicle carrying hazardous materials which requires placards. The hazardous materials (HAZMAT) endorsement must be on the license. Drivers who transport hazardous wastes, as defined by VC §§353 and 15278, are also required to have the HAZMAT endorsement.
a single vehicle with a GVWR of 10,000 lbs. or less including a tow dolly, if used.
With a vehicle weighing 4,000 lbs. or more unladen, you may tow a:
trailer coach not exceeding 9,000 lbs. gross.
trailer coach or 5th-wheel travel trailer under 10,000 lbs. GVWR when towing is not for compensation
5th-wheel travel trailer exceeding 10,000 lbs. but not exceeding 15,000 lbs. GVWR, when towing is not for compensation and with endorsement.
NOTE: No passenger vehicle regardless of weight, may tow more than one vehicle. No motor vehicle under 4,000 lbs. unladen may tow any vehicle weighing 6,000 lbs. or more gross. (VC §21715)