Civilian escorts may be required once an OSOW configuration exceeds specified statutory length, width, height, weight or overhang limits. Escorts may be required to lead and/or follow an OSOW load depending on which dimensions are over the legal limit and the overall size of the load. Generally, escorts are paired with oversized loads to ensure that their size or performance differences do not cause increases in roadway accidents. Most states differentiate escort requirements based off roadway type, typically for two categories: 1) two-lane and 2) multilane highways. Other states implement roadway specific escort requirements based on whether the roadway is divided, an interstate or belongs to a defined route network. The maps on this page display escort requirements for two-lane roadways and undivided highways. When a state has multiple route classes, the maps assume a single route class that includes two lane roadways.
Two-Lane Civilian Escort Requirements
Length
Width
Height
Weight
Rear Overhang
