1910.1043(d)(1)(iv): OSHA rule
Key takeaways
- 1910.1043(d)(1)(iv) is part of OSHA's general industry standards (29 CFR Part 1910).
- Related part: 1910.1043(d) Exposure monitoring and measurement (1 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1910.1043(d)(1)(iv) is one requirement inside 1910.1043 Cotton dust, an OSHA general industry standard (Part 1910). It includes 2 sub-paragraphs. 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
(iv) OSHA will issue a written opinion stating that an instrument is equivalent to a vertical elutriator cotton dust sampler if
(A) A manufacturer or employer requests an opinion in writing and supplies the following information:
(1) Sufficient test data to demonstrate that the instrument meets the requirements specified in this paragraph and the protocol specified in appendix E of this section;
(2) Any other relevant information about the instrument and its testing requested by OSHA; and
(3) A certification by the manufacturer or employer that the information supplied is accurate, and
(B) if OSHA finds, based on information submitted about the instrument, that the instrument meets the requirements for equivalency specified by paragraph (d) of this section.
Source: eCFR, text current as of 2026-10-15. Read all of 1910.1043.
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OSHA interpretation letters
- The CAM/PCAM Model C instrument is considered equal to the vertical elutriator cotton dust sampler. (1986-05-21)
Related parts of this rule
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About this page
Sources
- 29 CFR 1910.1043 (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.