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.
Infraspecific name is "Acanthocalycium klimpelianum", which can be abbreviated to "A. klimpelianum" where the context makes the genus clear. The species cannot be referred to as just "klimpelianum". In the same way, the name of a particular variety of "Acanthocalycium klimpelianum" is "Acanthocalycium klimpelianum" var. "macranthum", which can be abbreviated to "A. k." var. "macranthum" where the context makes the species clear. The variety cannot be referred to as just "macranthum". Sometimes more than three parts will be given; strictly speaking, this is not a name, but a classification. The ICN gives the example of "Saxifraga aizoon" var. "aizoon" subvar. "brevifolia" f.