BAC Defined as Illegal by State
The federal government adopted a national standard of 0.08% BAC for the legal DUI limit and provides sanctions for states that do not meet that mandate.
All states also now have zero tolerance laws: the license of anyone under 21 driving with a BAC of .01% or higher (.02% in some states) will be suspended.
The blood-alcohol limit for commercial drivers 0.04%.
Criminal Code of Canada
While .08% BAC is the limit under the Criminal Code of Canada, .05% (50 mg/100 ml) will result in a 12 hour suspension under the Highway Traffic Act, and novice drivers must have 0% under the HTA.
|Impaired Driving Sections
R.S., 1985, c. C-46, s. 253
Every one commits an offence who operates a motor vehicle or vessel or operates or assists in the operation of an aircraft or of railway equipment or has the care or control of a motor vehicle, vessel, aircraft or railway equipment, whether it is in motion or not,
(a) while the person's ability to operate the vehicle, vessel, aircraft or railway equipment is impaired by alcohol or a drug; or
(b) having consumed alcohol in such a quantity that the concentration in the person's blood exceeds eighty milligrams of alcohol in one hundred millilitres of blood.