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; or
4. Upon a roadway designated and signposted for one-way traffic.
Structure Mississippi Code
Title 63 - Motor Vehicles and Traffic Regulations
Chapter 3 - Traffic Regulations and Rules of the Road
Article 13 - Driving on Right Side of Roadway: Overtaking and Passing; Following
§ 63-3-601. Vehicles to be driven on right half of roadway; exceptions
§ 63-3-607. Passing by vehicles proceeding in opposite directions
§ 63-3-609. Overtaking and passing of vehicles proceeding in same direction