The NICEIC is the UK’s leading voluntary regulatory body for the electrical contracting industry. It has been assessing the electrical competence of electricians for nearly sixty years and currently maintains a roll of over 26,000 registered contractors.
The Electrical Safety Council is UK charity dedicated to keeping people safe by reducing the risk of electrical accidents. Their website contains useful advice and downloadable fact sheets.
The electrical requirements of the Building Regulations are contained in Part P.