This app is only informative, App NOM-001-SEDE-2012, is a transcription of the same as it was published on November 29, 2012 in the Official Gazette of the Federation (DOF) as the Official Mexican Standard NOM- 001-SEDE-2012, Electrical installations (use) (NOM), which came into force on May 29, 2013, This standard responds to the technical needs required for the use of electrical energy in electrical installations in the national level, and its application is the responsibility of the user. Atte. Gabriel Perez - Developer