The newest addition to the National Electrical Installation Standards (NEIS) series of publications is NECA 200-2002, Recommended Practices for Installing and Maintaining Temporary Electrical Power at Construction Sites (ANSI). It covers the planning, installation, expansion, maintenance, cutover, and removal of temporary power systems operating at 600 volts or less.

NEIS, published by the National Electrical Contractors Association, are performance and workmanship standards for electrical construction, and approved by the American National Standards Institute (ANSI).