(1) Public highways. The following must comply with the United States Department of Transportation's (U.S. DOT) requirements:

(a) Packaging, marking, and labeling containers of blasting agents that are being transported on public highways.

(b) Vehicles must follow placard regulations for transporting blasting agents on public highways.

(2) Transporting blasting agents and explosives together. Transportation of blasting agents with explosives in the same vehicle must meet the requirements of WAC 296-52-68060, Operation of vehicles transporting explosives.

(3) Vehicles. Vehicles transporting blasting agents must be in safe operating condition at all times.

(4) Prohibited activities. The following activities are prohibited:

(a) Carrying matches, firearms, acids, or other corrosive liquids, in the bed or body of any vehicle containing blasting agents.

(b) Allowing anyone who is smoking or under the influence of intoxicants, narcotics, or other dangerous drugs to ride, drive, load, or unload a vehicle, containing blasting agents.

(c) Transporting or carrying blasting agents on any public vehicle that has paying customers.