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
Requirements for labeling of products shipped for export only to non-U.S. destinations, under the revised Hazard Communication Standard (HCS 2012) 1910.1200(f)(1)
Enforcement discretion for distributors on limited continued use of HCS 1994 labels 1910.1200
Inspection Guidance for Poultry Slaughtering and Poultry Processing Establishments 1904 - Table of Contents, 1910 Subpart E, 1910.95, 1910.119, 1910.132, 1910.141, 1910.147, 1910.212, 1910.1200, 1913.10
HCS requirements for RCRA and non-RCRA waste 1910.1200, 1910.1200(b)(6), 1910.1200(c)
The labeling elements required on the safety data sheet (SDS) under the Hazard Communication Standard (HCS 2012) 1910.1200(g)(2)
Container labeling of non-pesticide agrichemical products packaged for shipment 1910.132(d), 1910.1200, 1910.1200(f)(1)
HCS labeling of imports and exports 1910.1200, 1910.1200(b)(4), 1910.1200(f)(1), 1910.1200(f)(6)
Labeling of small containers in the laboratory 1910.1200(f)(6), 1910.1200(f)(6)(i), 1910.1200(f)(6)(ii), 1910.1450(e), 1910.1450(h)(1)
Use of 1994 HCS labels on containers packaged for shipment 1910.1200, 1910.1200(j)(2)
Hazard communication pictograms; single color and economic feasibility 1910.1200(f), 1910.1200 App C
The requirements for reporting safety data sheet (SDS) information under the Hazard Communication Standard 1910.1200
Hazard communication effective dates and labels 1910.1200(j), 1910.1200(f)
Hazard communication 2012-compliant labels and safety data sheets on shipped containers of hazardous chemicals 1910.1200(f)(6), 1910.1200(g)(6)(iv)
Hazard communication effective dates and SDSs 1910.1200(j), 1910.1200(g)(1), 1910.1200(g)(6)(iv), 1910.1200(g)(8)
Label requirements between CPSC and HCS 2012 and aerosol products 1910.1200(f)(1)(iv), 1910.1200 App B, 1910.1200 App C
HCS 2012 pictograms for aerosol air fresheners 1910.1200(f)(1)(iv), 1910.1200 App B, 1910.1200 App C
Label requirements between CPSC and HCS 2012 and aerosol products 1910.1200(b)(5)(v), 1910.1200 App C, 1910.1200 App B
Applicability of gas detector tubes under Hazard Communication 2012 1910.1200(b)(6)(v), 1910.1200(c)
Definition of complex mixture 1910.1200, 1910.1200(g)(4)
Inspection Guidance for Inpatient Healthcare Settings 1910.23, 1910.132, 1910.1030, 1910.1200, 1913.10