Operation while impaired

253 (1) 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.

Marginal note:For greater certainty

(2) For greater certainty, the reference to impairment by alcohol or a drug in paragraph (1)(a) includes impairment by a combination of alcohol and a drug.

Marginal note:Operation while impaired blood drug concentration

(3) Subject to subsection (4), everyone commits an offence who has within two hours after ceasing to operate a motor vehicle or vessel or after ceasing to operate or to assist in the operation of an aircraft or of railway equipment or after ceasing to have the care or control of a motor vehicle, vessel, aircraft or railway equipment

(a) a blood drug concentration that is equal to or exceeds the blood drug concentration for the drug that is prescribed by regulation;

(b) a blood drug concentration that is equal to or exceeds the blood drug concentration for the drug that is prescribed by regulation and that is less than the concentration prescribed for the purposes of paragraph (a); or

(c) a blood alcohol concentration and a blood drug concentration that is equal to or exceeds the blood alcohol concentration and the blood drug concentration for the drug that are prescribed by regulation for instances where alcohol and that drug are combined.

Marginal note:Exception

(4) No person commits an offence under subsection (3) if

(a) they consumed the drug or the alcohol or both after ceasing to operate a motor vehicle or vessel, or after ceasing to operate or assist in the operation of an aircraft or railway equipment or after ceasing to have the care or control of a motor vehicle, a vessel, an aircraft or railway equipment; and

(b) after ceasing the activities described in paragraph (a), they had no reasonable expectation that they would be required to provide a sample of a bodily substance. R.S., 1985, c. C-46, s. 253; R.S., 1985, c. 27 (1st Supp.), s. 36, c. 32 (4th Supp.), s. 59; 2008, c. 6, s. 18; 2018, c. 21, s. 1.

Marginal note:Regulations253.1

The Governor in Council may make regulations

(a) prescribing the blood drug concentration for a drug for the purposes of paragraph 253(3)(a);

(b) prescribing the blood drug concentration for a drug for the purposes of paragraph 253(3)(b); and

(c) prescribing a blood alcohol concentration and a blood drug concentration for a drug for the purposes of paragraph 253(3)(c).