They installed tollbooths at Vicuña Mackenna (Córdoba) (km 591), La Cumbre (San Luis) (km 762) and La Paz (Mendoza) (km 900). In 1993 companies were invited to place bids to extend Access West from Avenida General Paz to Luján. Grupo Concesionario del Oeste won the contract in 1994. Work finished on 2 September 1998. In an agreement between the national government and San Luis Province, the province constructed a 214 km expressway running across the province, and in exchange the government granted all revenue from that road to the province for 30 years. The agreement was signed on 6 October 2000. This agreement meant that Camino del Oeste would not receive the revenue from this road. Work started on 16 April 2003. The road corridor contracts expired in 2003. This meant that some highways could be renumbered and new tenders were offered. Autovía Oeste put in the winning bid for Road Corridor 3. They  said they would extend the corridor with two sections from 63–654 km and from 865–999 km, corresponding to Luján - San Martín excluding San Luis Province. In 2010 they took over the joint venture of building a highway from Buenos Aires to the Andes. The expressway between San Martín and Mendoza is maintained by a modular system. The 180 km stretch between National Route 40 and the Chilean border has been managed by recovery and maintenance contracts since 1 January 2007. Prior to that, this section had been maintained directly by the National Highways Directorate. The maximum speed limit for cars and motorcycles is 120 km/h on the expressway sections and 100 km/h on the dual carriageway sections outside urban areas. In the mountain zones the maximum speed is 80 km/h in some sections and 60 km/h in others. The speed limit in tunnels is 40 km/h. The maximum speed for buses is 90 km/h or the maximum for cars on that section, whichever is lowest. For trucks it is either 80 km/h or the maximum for trucks, whichever is lowest. In order to prioritise which roads to improve and which road junctions to build, the National Highways Directorate have divided the national road network into 1,200 sections of uniform traffic. Route 7 is divided into 20 sections in Buenos Aires, 2 in Santa Fe, 5 in Córdoba, 13 in San Luis and 15 in Mendoza.