As easy as splitting lanes may be for motorcycle enthusiasts, it is definitely not legal on the roadways of Massachusetts. The state forbids lane splitting in Part 1, Title XIV, Chapter 89, Section 4A of its General Laws, saying that vehicle operators must ride entirely in a single lane on any road with two or more lanes. Drivers cannot deviate from their lanes until they check to make sure it is safe to do so. In Massachusetts, motorcyclists may not use the same lane to pass other vehicles, nor may they split lanes. They must pass in a single file. The only time they can share a lane with another motor vehicle is when they ride next to another motorcycle. From time to time, Massachusetts has reviewed legislation that would allow motorcycles to split lanes, but it has never been approved. This is the same in all states but California. One reason lane splitting is allowed in California is that the road infrastructure there better supports it. Highways are wider, with more lanes. It would be practically impossible to accommodate lane splitting on many of the winding roads of Massachusetts, which originated as horse, cow, and footpaths in the 17th century.