Minnesota Statute 169.18 "Keep to the right. Upon all roadways of sufficient width a vehicle shall be driven upon the right half of the roadway, except as follows:

(1) when overtaking and passing another vehicle proceeding in the same direction under the rules governing such movement;

(2) when the right half of a roadway is closed to traffic while under construction or repair;

(3) upon a roadway divided into three marked lanes for traffic under the rules applicable thereon;

(4) upon a roadway designated and signposted for one-way traffic as a one-way roadway; or

(5) as necessary to comply with subdivision 11 when approaching an authorized vehicle parked or stopped on the roadway."

emphasis not mine