The National Electrical Contractors Association (NECA), one of the NLMCC’s partners, is a major electrical standards developer, accredited by the American National Standards Institute (ANSI). Since 1997, NECA has been developing and publishing a family of ANSI-approved industry standards that define acceptable workmanship and quality for electrical construction.

The National Electrical Installation Standards (NEIS) are organized as a series of installation manuals for electrical systems and products. They are intended for use by construction buyers and specifiers and can be referenced in specifications and drawings for electrical construction projects. In this way, they become a mandatory, enforceable part of the contract documents.

The NLMCC supports the development of standards such as the NEIS, because they provide a method for communicating quality. For example, architects and engineers can use standards to specify a level of quality and professionalism for electrical installations; code officials can refer to them for guidance as to what constitutes "accepted industry practice" when inspecting installations; and building owners, property managers, and tenants can have the assurance that electrical installations are performed in accordance with widely-accepted standards for reliability, quality, and professionalism.