NAPIT - National Association of Professional Inspectors and Testers NAPIT acts as the electrical contracting industry's independent voluntary regulatory body for electrical installation safety matters throughout the UK. It maintains and publishes registers of electrical contractors that have been assessed against scheme requirements, including the national electrical safety standard BS 7671, the IEE Wiring Regulations
IET - The Institution of Engineering and Technology Founded 140 years ago, the IET is one of the world’s leading professional societies for the engineering and technology community. The IET has more than 150,000 members in 127 countries, with active networks of members in 37 countries. The IET is at the forefront in promoting electrical safety. The 1st Edition of the IEE Wiring Regulations was published in 1882. Since then the Regulations have been regularly updated to reflect technical developments and changes in best practice. In July 2011 the IET published an amendment to the 17th Edition of the IET Wiring Regulations. (BS 7671).