Letters of Interpretation

OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed.

Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.

These letters of interpretation and the standards they address may not apply to OSHA State Plans. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or additional requirements. Please see OSHA-approved State Plans for more information.

Filters


Date Title Standard Number
Bloodborne pathogen standard as it pertains to the construction industry. 1910.1030
Bloodborne pathogens standard's application to allergists. 1910.1030
Bloodborne pathogens and laundering of contaminated articles. 1910.1030
Ground fault circuit interrupters on extension cords and portable tools. 1926.404
Labeling and RCRA requirements and the HCS standard. 1910.1200
Temporary labor camp standards. 1910.142
Injury and illness recordkeeping requirements. 1904 - Table of Contents
Natural gas distribution and transmission facilities. 1910.119
Natural gas facility process hazard analysis requirements. 1910.119
Storage of flammable liquid in original containers at a job worksite. 1926.152
Fall protection & ANSI standards.
Scaffold step unit towers when used for access to locations other than scaffold platforms. 1926.1052(a)(1), 1926.451(e)(4)
Requirements for MTD to identify registered professional engineers. 1926 Subpart P
Training requirements for hospital personnel involved in an emergency response of a hazardous substance. 1910.120
Employees who work at hazardous waste sites who are not involved in cleanup. 1910.120, 1910.120(a)(1)(iii), 1910.120(e)
Standards applying to ground-supported tower type hoists. 1926.552
Male infertility and welding engineers. 1910 Subpart H
Request for an amendment to the bloodborne pathogen standard. 1910.1030
Background of bloodborne pathogens standard. 1910.1030
Applicability of bloodborne pathogens standard to first aid providers at electric cooperatives 1910.1030