The Road Traffic Act 1988 (Prescribed Limit) (Scotland) Regulations 2014 No. 328

Prescription of proportion of alcohol

2.  For the purpose of the definition of “the prescribed limit” in section 11(2) of The Road Traffic Act 1988, the prescribed proportion in relation to driving or attempting to drive, or being in charge of a vehicle, in Scotland, is—

(a) 22 microgrammes of alcohol in 100 millilitres of breath;

(b) 50 milligrammes of alcohol in 100 millilitres of blood; or

(c) 67 milligrammes of alcohol in 100 millilitres of urine.