Correct answer
0.0 mg of alcohol.
0.0 mg per litre of exhaled air: consuming no alcohol is the safest recommendation. Article 20 sets this adult driver’s breath limit at 0.15 mg/l, with a corresponding blood limit of 0.3 g/l; 0.20 and 0.25 mg/l exceed it. The zero recommendation does not itself change the legal limit. Breath and blood concentrations use different units and must not be mixed.
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0.25 mg of alcohol.
0.20 mg of alcohol.
0.0 mg of alcohol.
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