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
Protection of impalement hazards: rebar and other hazards. 1926.701(b), 1926.25(a)
Fall protection methods when assembling and installing roofs. 1926.501
Exclusive use of videotape training for construction workers. 1926.21(b), 1926.602(d), 1926 Subpart L
Appropriate safety practices for the removal of electrical meters. 1910.269(l)(2), 1910.269(l)(3), 1910.137
OSHA's rationale for the noise exposure PEL. 1910.95, 1910.95(i)(1), 1910.95(i)(2)(i)
Clarification of OSHA's risk assessment and approach for setting the asbestos PEL. 1910.1001(c), 1926.1101(c)
Bloodborne pathogens: OSHA acceptance of DOT "Infectious Substances" label. 1910.1030(g)(1)(i)
Topical skin adhesive used to close wounds is considered medical treatment. 1904.2
Separate establishments require separate OSHA logs; No recent recordkeeping revisions. 1904.2
OSHA's policy regarding the use of EPA-registered disinfectants. 1910.1030(c)(4)(ii)(A)
Recording injuries that occur at secondary facility of the same company. 1904.2
Child Labor: Importance of the Referral System Established in the MOU between the ESA Wage and Hour Division and OSHA. 1975.3(c)
Child Labor: Probability Assessment and Good Faith Penalty Adjustment Considerations. 1903.15
Clarification of OSHA's citation policy for repeated violations. 1903.15
Child Labor: Guidance Criteria Considerations for Handling of Cases To Be Proposed for Violation-By-Violation. 1903.15
Child Labor: Responding to Complaints Alleging Hazards to Workers Under 18 Years of Age. 1903.11
Applicability of the PSM standard to a flammable liquid manufacturing process. 1910.119, 1910.119(a)(1)(ii)(B), 1910.119(e), 1926.64, 1926.64(a)(1)(ii)(B), 1926.64(e)
Storage of gas cylinders on construction sites; clarification of "in storage." 1926.350(a)(10)
Employer's responsibility to provide time and transportation for Hepatitis B vaccinations. 1910.1030(f)(1)(ii)
Spray painting in aircraft hangars 1910.94