The notified draft Mexican Official Standard applies to the electrical design and construction of: (a) the National Transmission Network; (b) the General Distribution Networks; (c) equipment and facilities for transformation, compensation and switching, inter alia, which enable electrical power to be transmitted and distributed; (d) infrastructure installed for the interconnection of power plants or the connection of load centres; and (e) stand-alone systems.

The following are outside the scope of this draft Mexican Official Standard: (a) facilities regulated by Mexican Official Standard NOM-001-SEDE-2012; and (b) measuring systems within the scope of Mexican Official Standard NOM-001-CRE/SCFI-201.

ACUERDO por el que la Comisión Reguladora de Energía ordena la publicación del proyecto de Norma Oficial Mexicana PROY-NOM-018-CRE-2020, Instalaciones eléctricas-Red Nacional de Transmisión y Redes Generales de Distribución-Especificaciones de seguridad (Agreement whereby the Energy Regulatory Commission orders the publication of draft Mexican Official Standard PROY-NOM-018-CRE-2020: "Electrical facilities - National Transmission Network and General Distribution Networks - Safety requirements") (197 pages, in Spanish)

The notified draft Mexican Official Standard establishes the safety requirements and technical guidelines for the National Transmission Network and General Distribution Networks, which are part of the National Electricity System, in order to ensure safe conditions for people, as well as a conformity assessment procedure.