3 ) is a tollfree part of the federal highway corridors (Spanish: los corredores carreteros federales).

This segment of the highway is important because it shortens the distance between the Baja California peninsula and the interior of the country by providing a link with Fed.

A second segment of the highway, 196 kilometres (122 mi), begins at Fed.

Their junction in the town of El Chinero is 55 kilometres (34 mi) north of San Felipe, Baja California.

There is a military inspection station just south of the junction, where all passing vehicles in both directions are subject to search.