①On a road with vehicle traffic lanes, a vehicle must proceed down the first lane from the left edge of the road; provided, however, that if the left side of the road (or the road itself, if it is a one-way street) has at least three vehicle traffic lanes, a motor vehicle (other than a special small motor vehicle or motor vehicle designated by road signs or markings) may proceed down any vehicle traffic lane other than the rightmost lane, pursuant to Cabinet Order and in accordance with its speed.

②On a road with vehicle traffic lanes, if road signs or markings specify a traffic distribution different from that which the preceding paragraph prescribes, vehicles must abide by that distribution of traffic in proceeding down those vehicle traffic lanes.

③When passing; when moving towards the left edge, center, or right edge of a road pursuant to Article 18, paragraph (4), Article 25, paragraph (1) or (2), Article 34, paragraphs (1) through (5) or Article 35-2; when proceeding in accordance with Article 35, paragraph (1); when continuing along a vehicle traffic lane down which the vehicle has been proceeding pursuant to Article 26-2, paragraph (3); when temporarily giving way pursuant to Article 40, paragraph (2); or if road conditions or other circumstances compel it, the driver of a vehicle may proceed other than in accordance with the preceding two paragraphs. When passing another vehicle in such a case, the driver must use the vehicle traffic lane that is to the immediate right of the vehicle traffic lane in which the vehicle has been proceeding.