National Electrical Installation Standards

Standards as High as Your Own


Call for Public Review



Revision of NECA 121-201X, Standard for Installing Nonmetallic-Sheathed Cable (Type NM-B)and Underground and Branch Circuit Cable (TypeUF)

Revision of NECA 303-201X, Standard for Installing and Maintaining Closed-Circuit Television (CCTV) Systems


Revision of NECA 413-201X, Standard for Installing and Maintaining Electric Vehicle Supply Equipment (EVSE)



All NEIS Currently Available for Public Review

Featured Standards


NECA 416-2016 Recommended Practice for Installing Energy Storage Systems

This standard describes methods and procedures used for installing multiple types energy storage systems. It also includes information about controlling and managing energy storage systems, in addition to commissioning and maintaining energy storage systems.
» Learn More

NECA/FOA 301-2016 Standard for Installing and Testing Fiber Optics

This standard describes installation and test procedures for fiber optic cabling networks. This standard applies fiber optic cabling installed indoors (premises installations) and outside plant (OSP) applications.
» Learn More

State Regulationsusa country shape

Find the major provisions of electrical code, enforcement, and contractor/electrician licensing requirements for each state in the U.S.

US Electrical Codes & Regulations by State »
Licensing Information by State ».

NEC Adoption by State

Building Codes Assistance Project Energy Code Adoption

Code Question of the Daytextbook

  • Tuesday, May 22, 2018
    CQD: 5/22/2018

    The CQD question and answer was not published on Wednesday May 16, 2018 so we are trying again.

    NEC 2017 Article 210.8 (A)(7) Interpretation,  Charlie- Dwelling Unit Questions:

    1). We have a wall hung microwave located directly above a sink where the distance between countertop and bottom of microwave is 18”, and the receptacle for the microwave is located in the cabinet above. Does this receptacle require GFCI protection if the microwave cord passes through a fixed barrier?

    2). Do the receptacles for the garbage disposal, dishwasher, and beverage cooler below the countertop require GFCI protection?

    Joe Koss

  • Monday, May 21, 2018
    CQD: 5/21/2018
    View Question and Answer

How's your knowledge?
» Get the Answer!