Nigerian Electricity Management Services Agency (NEMSA) was established by NEMSA ACT 2015 to carry out the Functions of Enforcement of Technical Standards and Regulations, Technical Inspection, Testing and Certification of all Categories of Electrical Installations, Electricity Meters and Instruments, to ensure the Efficient Production and Delivery of Safe, Reliable and Sustainable Electricity Power Supply and Guarantee Safety of Lives and Property in the Nigerian Electricity Supply Industry, and other allied industries/workplaces/premises in Nigeria. 

By this Act, NEMSA is the sole agency authorized by Law to carry out the enforcement of Technical Standard & Regulation, Inspection, Testing and Certification of all Electrical Installations in Nigeria.