Correct answer
0.30 grams per litre.
0.3 grams per litre of blood. The corresponding breath limit is 0.15 milligrams per litre, a different sample and unit. The reduced limit depends on the vehicle or service defined by the rule, not simply on someone working as a driver. It does not authorise impaired driving; the safest choice is not to drink if driving.
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0.50 grams per litre.
0.30 grams per litre.
0.15 grams per litre.
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