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.

NOTICE:

How to Request a Letter of Interpretation

Filters


Date Title Standard Number
OSHA posters and other government labor law posters on top of one another on a wall mounted hanger 1903.2(a)(1)
Access to Employee Exposure and Medical Record and the OSHA’s Federal Labor Laws Poster 1910.1020(g)(1), 1910.1020(c)(5), 1910.1020(c)(6), 1903.2
Posting OSHA Required Notices[1903.2(a)(1)] 1903.2(a)(1)
Whether workers at a workplace without a collective bargaining agreement may authorize a person who is affiliated with a union or a community organization to act as their representative under the Occupational Safety and Health Act (OSH Act). 1903.8, 1903.11, 1952.10, 1903.20
Posting requirements for notices in other languages. 1903.2
Posting of the notices and the OSHA Poster for mobile work crews. 1903.2
Posting of the OSHA notice. 1903.2
Posting of the OSHA notice;jurisdiction over state and military personnel 1903.2(a), 1975.5, 1952 - Table of Contents, 1960.1(e)
Federal posting requirements applicable to an employer with no more than 10 employees. 1903 - Table of Contents, 1903.2, 1903.3, 1903.16, 1904 - Table of Contents, 1904.16, 1910.146
The posting of notices on the application of certain Federal laws. 1903.2
The excessive space required on job sites to comply with the posting of various posters mandated by Federal law. 1903.2(a)(3)
Information from (OSHA) Pamphlet 3000. 1903.14, 1903.20
Asserting jurisdiction under State law over any occupational safety or health issue with respect to which no standard is in effect. 1903.20, 1910.141
Multi-Plant Employers. 1903.2