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
Highly Hazardous Chemicals as it applies to toxic or reactive chemical mixtures which are not explosive and which are not flammable liquids or gases. 1910.119
Proper recording of a bloodborne pathogens case. 1904 - Table of Contents
All electric tools need to be tested by a qualified national testing laboratory and be listed and labeled 1926.449, 1926.302(a), 1926.403(a), 1926 Subpart K
Highly Hazardous Chemicals applies to aqueous solutions of Hydrogen Fluoride. 1910.119
Demolition regulations do apply to the removal of ceilings and interior non-load bearing walls and partitions 1926.850(a), 1926 Subpart T, 1926 Subpart L
OSHA does not cross reference general industry and construction standards. 1910.146, 1926.21
De minimis violations are not included in a citation. 1926.550(f)(1)(iv)
IMIS Software Release CPLN 5.4.0.
Highly Hazardous Chemicals as it applies to "Dowtherm". 1910.119
Exemption from wearing hard hats. 1910.132, 1910.135
Passenger seat belts not required on school buses 1926.601(b)(9)
Statement of compliance for skylights.
Using compressed air for cleaning an employee's body and clothing 1910.242, 1910.242(b), 1917.154
Posting of the OSHA notice;jurisdiction over state and military personnel 1903.2(a), 1975.5, 1952 - Table of Contents, 1960.1(e)
Recording bloodborne related cases on the OSHA 200 Log. 1904 - Table of Contents
Confined space entry. 1910.146
Proper recording of second degree burns on the OSHA 200 Log. 1904 - Table of Contents
Respirator selection requirements prescribed in the OSHA standard on benzene exposure. 1910.1028
Soil classification. 1926 Subpart P
Proper recording of restricted work activity on the OSHA 200 Log. 1904 - Table of Contents