1926.405(b)(3)(ii): Covers
Key takeaways
- 1926.405(b)(3)(ii) is part of OSHA's construction standards (29 CFR Part 1926, Subpart K).
- Related part: 1926.405(b) Cabinets, boxes, and fittings (233 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.405(b)(3)(ii) ("Covers") is one requirement inside 1926.405 Wiring methods, components, and equipment for general use, an OSHA construction standard (Part 1926, Subpart K). The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.
Official text
(ii) Covers. Boxes shall be closed by covers securely fastened in place. Underground box covers that weigh over 100 pounds (43.6 kg) meet this requirement. Covers for boxes shall be permanently marked “HIGH VOLTAGE.” The marking shall be on the outside of the box cover and shall be readily visible and legible.
Source: eCFR, text current as of 2026-10-15. Read all of 1926.405.
Free toolbox talk
A 5-minute crew talk on 1926.405(b)(3)(ii), plus alerts when this rule changes. Free.
OSHA interpretation letters
- Electrical standard requirements concerning covers for electrical pull boxes, junction boxes, and fittings. (2002-10-03)
Related parts of this rule
- 1926.405(b) Cabinets, boxes, and fittings 233 citations
- 1926.405(b)(2) Covers and canopies 168 citations
- 1926.405(b)(1) Conductors entering boxes, cabinets, or fittings 63 citations
- 1926.405(b)(3) Pull and junction boxes for systems over 600 volts, nominal 2 citations
Get your crew competent
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About this page
Sources
- 29 CFR 1926.405 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly
3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.