Section 5(a)(1) of the OSH Act, often referred to as the General Duty Clause, requires employers to "furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or are likely to cause death or serious physical harm to his employees". Section 5(a)(2) requires employers to "comply with occupational safety and health standards promulgated under this Act".

Note: Twenty-four states, Puerto Rico and the Virgin Islands have OSHA-approved State Plans and have adopted their own standards and enforcement policies. For the most part, these States adopt standards that are identical to Federal OSHA. However, some States have adopted different standards applicable to this topic or may have different enforcement policies.

General Industry (29 CFR 1910)

• 1910 Subpart H, Hazardous materials
  • 1910.119, Process safety management of highly hazardous chemicals
    • Appendix A, List of highly hazardous chemicals, toxics and reactives (Mandatory)
    • Appendix B, Block flow diagram and simplified process flow diagram (Nonmandatory)
    • Appendix C, Compliance guidelines and recommendations for process safety management (Nonmandatory)
    • Appendix D, Sources of further information (Nonmandatory)

Construction Industry (29 CFR 1926)

• 1926 Subpart D, Occupational health and environmental controls
  • 1926.64, Process safety management of highly hazardous chemicals
    • Appendix A, List of highly hazardous chemicals, toxics and reactives (Mandatory)
    • Appendix B, Block flow diagram and simplified process flow diagram (Nonmandatory)
    • Appendix C, Compliance guidelines and recommendations for process safety management (Nonmandatory)
    • Appendix D, Sources of further information (Nonmandatory)

• Process Safety Management (1992)
• Search all available preambles to final rules.

• Petroleum Refinery Process Safety Management National Emphasis Program. CPL 03-00-004, (2007, June 7).
• Process Safety Management of Highly Hazardous Chemicals –- Compliance Guidelines and Enforcement Procedures. CPL 02-02-045 [CPL 2-2.45A], (1992, September 28). (Note: Some original CPL and audit guidelines are not included in this document).
• OSHA Response to Significant Events of Potentially Catastrophic Consequences. CPL 02-00-094 [CPL 2.94], (1991, July 22).
• Search all available directives.

• Clarification of the retail facilities exemption under the PSM standard. (2005, December 12).
• Use of ANSI/ISA S84.00.01-2004 Parts 1-3 (IEC 61511 MOD) to comply with OSHA's Process Safety Management standard. (2005, November 29).
• Search all available standard interpretations.
  

Note: These are NOT OSHA regulations. However, they do provide guidance from their originating organizations related to worker protection.

• 5154.4S, Ammunition & Explosives Safety Standards
• 4145.26M, Contractor's Safety Manual for Ammunition, Explosives and Related Dangerous Material

Note: These are NOT OSHA regulations. However, they do provide guidance from their originating organizations related to worker protection.

• 2015-1994, Safe Entry and Cleaning of Petroleum Storage Tanks, Planning and Managing Tank Entry from Decommissioning Through Recommissioning, Fifth Edition
• 500-1992, Classification of Locations for Electrical Installations at Petroleum Facilities, First Edition
• 510-1992, Pressure Vessel Inspection Code: Maintenance Inspection, Rating, Repair, and Alteration, Seventh Edition. Includes Supplement 1 and Supplement 2.

• 598, Valve Inspection and Testing, Seventh Edition
• 653, Tank Inspection, Repair, Alteration, and Reconstruction, Second Edition. Includes Addendum 1.
• API Recommended Practices
  • RP 574-1992, Inspection of Pressure Relieving Devices, First Edition
  • RP 520-1-1992, Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries Part I, "Sizing and Selection," Sixth Edition
  • RP 752, Management of Hazards Associated With Location of Process Plant Buildings, CMA Manager's Guide, First Edition
  • RP 2003, Protection Against Ignitions Arising Out of Static, Lightning, and Stray Currents, Fifth Edition
  • RP 574-1992, Inspection of Piping, Tubing, Valves, and Fittings, First Edition
  • RP 55, Conducting Oil and Gas Producing and Gas Processing Plant Operations Involving Hydrogen Sulfide, Second Edition
  • RP 2220, Improving Owner and Contractor Safety Performance, First Edition
  • RP 750, Management of Process Hazards, First Edition
  • RP 521-1992, Guide for Pressure-Relieving and Depressuring Systems, Third Edition

• 495, Explosive Materials Code. Covers the manufacture, transportation, storage, sale, and use of explosive materials.
• 77, Recommended Practice on Static Electricity
• 780, Standard for the Installation of Lightning Protection Systems