Before Decree #1595 of 1979,[1] Provincial Route 1 went from Villalonga to Azara, going through San José and Apóstoles.

The aforementioned decree transferred the road north of Route 14 to federal jurisdiction.

Federal Law #23153 of 9 November 1984 transferred jurisdiction of the road to the federal government and renamed it as National Route 103, as another route already had the number 105 on the west side of Misiones Province.

It was transferred back to the province in 1993 and is today part of route 103.

The paving of the section between Oberá and Alba Posse was done after the transfer.