There have been instances where those rules have not been strictly enforced, but in the case of the atómicos championship, all champions were native Mexicans.

This can either be due to a storyline,[b] or real-life issues such as a champion suffering an injury being unable to defend the championship,[c] or leaving the company.

[d] The Mexican National Atómicos Championship was created in 1996 specifically for the AAA promotion to control.

[e][f] In late 1996 Los Villanos left AAA for Promo Azteca, which meant the championship was inactive at that point.

[8] In October 2006 Psicosis and his new team, the Mexican Powers (Crazy Boy, Juventud Guerrera, and Joe Líder) won the championship,[8] only for a reorganized Black Family, now known as La Secta del Mesias ("The Sect of the Messiah"), to claim the title on May 20, 2007.

[2] Los Vipers members Histeria, Maniaco, El Mosco de la Merced, and Psicosis hold the record for the most reigns as a team, a total of four, while Psicosis also held it as part of Mexican Powers, putting his individual count at five.

[2] Cuervo, Escoria, and Ozz held the championship both as part of the Black Family and La Secta de Mesias, putting their individual reigns at 1,420 days.

[2] The championship was only vacant once during its history, as the original champions, Los Villanos and Pierroth Jr. left AAA in late 1996.

Damián's team defeated La Parka, Super Caló, Winners, and El Mexicano, who had also not competed in previous rounds, en route to the finals.