Primera División A (Méxican First A Division) is a Mexican football tournament.
This season was composed of Invieno 1999 and Verano 2000.
Irapuato F.C.
was the winner of the promotion to First Division after being champion in the two tournaments of the season.
Irapuato were champions of the Invierno 1999 and Verano 2000 tournaments, automatically winning the Campeón de Ascenso and gained the promotion to Primera División.