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California has adopted Secs. 392.66, 392.67, and 392.71 of the Federal Regulations.
Motor carriers may not require or knowingly permit a driver to operate any motor vehicle while under the influence of alcohol or any drug.
No persons may drink any alcoholic beverages while operating a motor vehicle. And no person may be in possession of an opened container of any alcoholic beverage while in a motor vehicle upon any highway in California.
A driver is ordered out of service for 24 hours if the driver is found to have 0.01 percent or more, by weight, of alcohol in his/her blood.
No person may operate a motor vehicle when he is so ill or fatigued that it is unsafe for him to operate a vehicle. Before driving a vehicle, an operator must determine that basic required vehicle equipment is in good working order.
A diesel-fueled commercial motor vehicle with a gross vehicle weight rating of more than 10,000 pounds that must be licensed for operation on highways may not idle for more than 5 minutes.
Exceptions — A bus may idle for up to 10 minutes prior to passenger boarding or when passengers are on board. There are also exceptions for:
The speed limit is 55 mph on all highways for the following vehicles:
Every vehicle 80 inches or more in width and every truck tractor, irrespective of width, when stopped or disabled on the roadway during hours of darkness shall immediately place warning devices as follows:
If disablement of any such vehicle occurs within 500 feet of a curve, crest of a hill, or other obstruction to view, the driver shall so place reflectors in that direction as to afford ample warning to other users of the highway, but in no case less than 100 feet nor more than 500 feet from the disabled vehicle.
When any such vehicle is disabled or parked off the roadway but within 10 feet there-of during darkness, warning devices shall be immediately placed by the driver as follows: one at a distance of approximately 200 feet and one at a distance of approximately 100 feet to the rear of the vehicle, and one at the traffic side of the vehicle not more than 10 feet to the rear of the vehicle. The devices shall, if possible, be placed between the edge of the roadway and the vehicle, but in no event less than two feet to the left of the widest portion of the vehicle or load thereon.