Letters of Interpretation | Occupational Safety and Health Administration

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.

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How to Request a Letter of Interpretation

Date	Title	Standard Number
09/24/2002	Respiratory protection, medical surveillance, and training requirements under HAZWOPER	1910.134(e), 1910.134(f), 1910.134, 1910.120, 1910.120(q)(6)(i), 1910.120(q)(6)(ii), 1910.120(q)(8)
09/17/2002	Labeling requirements for packages used to ship blood or OPIM.	1910.1030(g)(1)(i), 1910.1030(d)(2)(xiii)
09/17/2002	Labeling requirements for packages used to ship blood or OPIM.	1910.1030(g)(1)(i), 1910.1030(d)(2)(xiii)
09/12/2002	Needle destruction device use as an engineering control for the Bloodbore Pathogens standard.	1910.1030(d)(2)(i), 1910.1030(c)(1)(iv), 1910.1030(b)
09/12/2002	Needle destruction device use as an engineering control for the Bloodbore Pathogens standard.	1910.1030(d)(2)(i), 1910.1030(c)(1)(iv), 1910.1030(b)
09/12/2002	Needle destruction device use as an engineering control for the Bloodbore Pathogens standard.	1910.1030(d)(2)(i), 1910.1030(c)(1)(iv), 1910.1030(b)
09/10/2002	Vapor areas must be limited; concentrations must remain below 25% of the substances' lower flammable limit	1910.124, 1910.124(b)(1), 1910.124(b)(4)(ii), 1910.123(d)
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	Vapor areas must be limited; concentrations must remain below 25% of the substances' lower flammable limit	1910.124, 1910.124(b)(1), 1910.124(b)(4)(ii), 1910.123(d)
09/10/2002	Vapor areas must be limited; concentrations must remain below 25% of the substances' lower flammable limit	1910.124, 1910.124(b)(1), 1910.124(b)(4)(ii), 1910.123(d)
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	There are no specific OSHA standards or requirements applicable to overhead doors.	1910.34, 1910.36, 1910.37, 1910 - Table of Contents, 1926 - Table of Contents, 1910.12
09/10/2002	Vapor areas must be limited; concentrations must remain below 25% of the substances' lower flammable limit	1910.124, 1910.124(b)(1), 1910.124(b)(4)(ii), 1910.123(d)
09/05/2002	Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.	1910.120, 1910.134, 1910.134(c), 1910.132, 1910.132(d), 1910.132(d)(2), 1910.120(q), 1910.120(q)(3), 1910.120(q)(3)(iv)
09/05/2002	Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.	1910.120, 1910.134, 1910.134(c), 1910.132, 1910.132(d), 1910.132(d)(2), 1910.120(q), 1910.120(q)(3), 1910.120(q)(3)(iv)
09/05/2002	Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.	1910.120, 1910.134, 1910.134(c), 1910.132, 1910.132(d), 1910.132(d)(2), 1910.120(q), 1910.120(q)(3), 1910.120(q)(3)(iv)
09/05/2002	Respiratory protection requirements for hospital staff decontaminating chemically contaminated patients.	1910.120, 1910.134, 1910.134(c), 1910.132, 1910.132(d), 1910.132(d)(2), 1910.120(q), 1910.120(q)(3), 1910.120(q)(3)(iv)