National Inspection Council for Electrical Installation Contracting a register of approved electricians. It was incorporated on 10 August 1956, and since 1 October 2005, it has been registered as The Electrical Safety Council. Electrical contractors register with the organisation to become approved contractors, meeting the NICEIC's specification of training. If work undertaken by the approved contractor is not up-to-standard, the NICEIC will correct it if necessary. Work is checked by 54 local Area Engineers. Many local authorities only give work to NICEIC-approved electricians. Most electrical items in domestic wiring are controlled from the consumer unit with its residual-current device (RCD), which since 2001 has to be installed.
Name of Mexico to the formation of the Mexican Republic which formally is known as the United Mexican States. Complications arose with the capital's former colloquial and semi-official name "Ciudad de Mexico, Distrito Federal (Mexico, D.F.)", which appears on postal addresses and is frequently cited in the media, thus creating a duplication whereas the shortened name was "Mexico, D.F., Mexico". Legally, the name was Distrito Federal (Federal District or District of the Federation). This ended with the change in statute of Mexico City into a state in 2016. Today it is officially called "Ciudad de México, México" abbreviated CDMX, Mexico. The official name