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.
RCD Mallorca has withstood history by remaining the current name. In 1960, RCD Mallorca earned its first promotion to the "División de Honor" under the tutelage of coach Juan Carlos Lorenzo and president Jaime Rosselló. In 1964, RCD Mallorca again earned promotion, this time to the Primera Division, under coach Cesar Rodriguez and president Baron de Vidal. Then, in 1969, RCD Mallorca earned its third promotion to the Primera Division, with coach Juancho Forneris and president Pau Servera. This decade produced three promotions to the Primera Division, including the first in Club history. However, it also produced the same number of relegations.