 As with all professional wrestling championships, matches for the Mexican National Tag Team Championship were not won or lost competitively but by a pre-planned ending to the match, the outcome of which was determined by the CMLL bookers and match makers.On occasion, a promotion declared the championship vacant, which meant there was no champion for a period of time.This was either due to a storyline, or real-life problems such as an injured champion being unable to defend the championship or leaving the company.