This article needs to be updated. The reason given is: The highway's northern terminus currently listed on this article may be out of date due to routing changes to the Tecate Port of Entry. Please help update this article to reflect recent events or newly available information.(September 2020)
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. 2 bypassing Tijuana. It also connects Valle de Guadalupe, San Antonio de las Minas and Valle de Las Palmas.
A second segment of the highway, 196 kilometres (122 mi), begins at Fed. 1 in Ensenada and links Ensenada with Fed. 5 near the east coast of the Baja California peninsula. 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.
^"Baja California"(PDF). Secretaría de Comunicaciones y Transportes de México. Archived from the original(PDF) on January 31, 2010. Retrieved August 28, 2009.