The maximum permitted blood alcohol level for professional drivers is...
A)0.30 milligrams per litre.
B)0.50 grams per litre.
C)0.30 grams per litre.Correct
Drivers of vehicles intended for the transport of goods with a maximum authorised mass exceeding 3,500 kg, those intended for the transport of passengers with more than nine seats, public service vehicles, those intended for school or minor transport, those intended for the transport of dangerous goods, emergency services or special transport, are prohibited from driving with blood alcohol levels exceeding 0.30 g/l and in exhaled air exceeding 0.15 mg/l.