Helemt Use: Required by law, as specified in Tennessee Code Annotated 55-9-302(a). (Effective July 1, 2005) Eye Protection: Required by law unless equipped with windscreen Daytime use of headlight: Required by law-modulating headlight permitted Muffler: No acoustical criteria. Handelbar Height: No restriction - (Effective July 1, 2005) Lane Spliting: Operation of motorcycles on laned roadways (b) The operator of a motorcycle shall not overtake and pass in the same lane occupied by the vehicle being overtaken. (c) No person shall operate a motorcycle between lanes of traffic or between adjacent lines o More Motorcycle Laws