National Electrical Installation Standards

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June is National Safety Month Observed Annually by the National Safety Council

June is National Safety Month observed annually by the National Safety Council. NSC is the nation’s leading nonprofit safety advocate, National Safety Month focuses on saving lives and preventing injuries, from the workplace to anyplace.
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REGISTRATION NOW OPEN: Fall 2020 ET&D 10hr. & 20hr. Train-the-Trainer Courses - The Woodlands Resort - The Woodlands, TX

The OSHA Electrical Transmission & Distribution Partnership is hosting another set of ET&D 10hr. & 20hr. Train-the-Trainer courses August 24 – 28. 2020 at The Woodlands Resort and Conference Center in The Woodlands, Texas. The Woodlands Resort is approximately 30 minutes north of Bush Intercontinental Airport.
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Featured Standards


NECA 303-2019 Standard for Installing Closed-Circuit Television Systems (CCTV)

This standard describes installation procedures for new closed-circuit television (CCTV) system equipment installed for video surveillance and for protection of building interiors, building perimeter, and surrounding property.

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NECA 120-2018 Standard for Installing Armored Cable (Type AC) and Type Metal-Clad (MC) Cable

This standard covers the identification, selection and installation of Type AC and Type MC cables, which are used for electrical wiring for residential, commercial and industrial occupancies.

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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

  • Friday, June 5, 2020
    CQD 6/5/20

    Hi Code People,

    I need your help. I have a fused switch on the back of my house for an A/C unit and it has two short sections of copper pipe installed where each fuse is supposed to be, I think. Is there a problem here or is this okay? Is there an electrical code that addresses this?

    Martin Peters

  • Thursday, June 4, 2020

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