Twenty-five 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.
This section highlights OSHA standards, preambles to final rules (background to final rules), directives (instructions for compliance officers), standard interpretations (official letters of interpretation of the standards), other federal standards, and national consensus standards related to process safety management (PSM).
Note: These are NOT OSHA regulations. However, they do provide guidance from their originating organizations related to worker protection.
American National Standards Institute (ANSI)/American Petroleum Institute (API)
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.
American Petroleum Institute (API)
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
National Fire Protection Association (NFPA)
The NFPA mission is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating scientifically-based consensus codes and standards, research, training, and education.
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
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