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
SCBA cylinder interchangeability. 1910.134(d)(1)(ii), 1910.156(f)(1)(iv), 1910.120(q)(3)(x)
SIC's excluded from OSHA occupational injury and illness recordkeeping. 1904 - Table of Contents
Association between toluene and Pierre Robin Syndrome. 1915.1000
Removal of foreign bodies embedded in the eye is recordable. 1904 - Table of Contents
Internet use for posting Material Safety Data Sheets (MSDSs). 1910.1020
Scaffolds used in the Construction Industry. 1926 - Table of Contents, 1926.451
Appropriateness of computer-based interactive training programs to satisfy required OSHA training. 1910.1030
OSHA regulation on "piped" potable water supply. 1910.141, 1928.110
OSHA's Methylene Chloride Standard 1910.1052
Mushroom Style Plastic Rebar Covers Used For Impalement Protection. 1926.701
A hazardous chemical is any chemical which is a physical hazard or a health standard. 1910.132, 1910.1200
Using 1992 data to "program" inspections. 1960 - Table of Contents
Reporting over-the-road fatalities; Refusing entry and employee interviews to an OSHA inspector; and OSHA's policy associated with seat belts on forklift trucks 1903.10, 1903.3, 1903.4
Team on Erection of Telecommunication Towers. 1926 Subpart M
Fall protection for employees climbing or moving on preassembled reinforcing steel assemblies. 1926.501
1910.119 does not apply to public displays of flame effects. 1910.119
OSHA's enforcement policy to protect workers against glutaraldehyde exposure.
Permissible Exposure Limits for Nuisance dust. 1910 - Table of Contents, 1910.134, 1910.1000
Glove bag methods for control of exposure to airborne asbestos. 1926.1101
Requirements for labeling portable fire extinguishers. 1910.1200