1926.752(a)(1): OSHA rule
Key takeaways
- 1926.752(a)(1) is part of OSHA's construction standards (29 CFR Part 1926, Subpart R).
- Related part: 1926.752(a) Approval to begin steel erection (2 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.752(a)(1) is one requirement inside 1926.752 Site layout, site-specific erection plan and construction sequence, an OSHA construction standard (Part 1926, Subpart R). 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
(1) The concrete in the footings, piers and walls and the mortar in the masonry piers and walls has attained, on the basis of an appropriate ASTM standard test method of field-cured samples, either 75 percent of the intended minimum compressive design strength or sufficient strength to support the loads imposed during steel erection.
Source: eCFR, text current as of 2026-10-15. Read all of 1926.752.
Free toolbox talk
A 5-minute crew talk on 1926.752(a)(1), plus alerts when this rule changes. Free.
OSHA interpretation letters
- Whether the notification required in §1926.752(a)(1) (attained concrete strength) must be given where steel will be erected on a long-existed concrete slab. (2006-03-10)
- Requirements for compressive-strength testing of concrete and mortar in a masonry wall during steel erection. (2004-08-23)
- Field-cured concrete sample cylinders must be subjected to similar conditions as the footings/walls; acceptable use of the Windsor Probe/Pin testing method. (2003-10-27)
- Written notification of ASTM strength test for mortar in masonry piers/walls prior to steel erection. (2003-05-21)
- Mortar testing requirements and controlling contractor responsibilities under the Steel Erection Standard (2002-12-27)
- Steel erection concrete testing requirements and number of samples required to be taken (2002-11-19)
Related parts of this rule
Get your crew competent
Trainers on Black Belt Safety: Marc Harvey, Dana Reyes
Trainers and suppliers: feature your business on this rule for $25/month.
About this page
Sources
- 29 CFR 1926.752 (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.