DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS  
DIRECTOR’S OFFICE  
OCCUPATIONAL HEALTH STANDARDS  
(By authority conferred on the director of the department of licensing and regulatory  
affairs by sections 14 and 24 of 1974 PA 154, MCL 408.1014 and 408.1024, and  
Executive Reorganization Order Nos. 1996-2, 2003-1, 2008-4, and 2011-4, MCL  
445.2001, 445.2011, 445.2025, and 445.2030)  
PART 591. PROCESS SAFETY MANAGEMENT OF HIGHLY HAZARDOUS  
CHEMICALS  
R 325.18301 Scope.  
Rule 1. (1) This standard establishes the minimum requirements for preventing or  
minimizing the consequences of catastrophic releases of toxic, reactive, flammable, or  
explosive chemicals. These releases may result in toxic, fire, or explosion hazards.  
(2) The regulations adopted by R 325.18302 shall apply to all workplaces pursuant  
to the provisions of these rules.  
(3) The manufacture of explosives, as defined in General Industry Safety Standard  
Part 55 “Explosives and Blasting Agents,” as referenced in R 325.18303, shall be in  
compliance with the requirements contained in the provisions of these rules.  
(4) The manufacture of pyrotechnics as defined in General Industry Safety Standard  
Part 55 “Explosives and Blasting Agents,” as referenced in R 325.18303, shall be in  
compliance with the provisions of these rules.  
History: 1993 AACS; 1999 AACS; 2013 AACS; 2016 AACS.  
R 325.18302 Adoption of standards by reference.  
Rule 2. (1) The following federal occupational safety and health administration  
(OSHA) regulations are adopted by reference in these rules:  
(a) 29 C.F.R. §1910.119 “Process safety management of highly hazardous  
chemicals,” effective February 8, 2013.  
(b) 29 C.F.R. §1910.119 Appendix A “List of highly hazardous chemicals, toxics  
and reactives (mandatory),” effective December 27, 2011.  
(2) All of the following provisions apply with respect to the regulations adopted in  
this rule:  
(a) A reference to 29 C.F.R. §1910.1200 “Hazard communication,” means  
Occupational Health Standard Part 430 “Hazard Communication;” General Industry  
Safety Standard Part 92 “Hazard Communication;” and Construction Safety Standard  
Part 42 “Hazard Communication;” as referenced in R 325.18303.  
(b) A reference to 29 C.F.R. §1910.38, “Emergency action plans,” means General  
Industry Safety Standard Part 6 “Fire Exits,” as referenced in R 325.18303.  
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(c) A reference to 29 C.F.R. §1910.109, “Explosives and blasting agents,” means  
General Industry Safety Standard Part 55 “Explosives and Blasting Agents,” as  
referenced in R 325.18303.  
(d) A reference to 29 C.F.R. §1910.252, “Welding, cutting, and brazing,” means  
General Industry Safety Standard Part 12 “Welding and Cutting,” as referenced in  
R 325.18303.  
(e) A reference to 29 C.F.R. §1910.120 “Hazardous waste operations and emergency  
response,” means Occupational Health Standard Part 432 “Hazardous Waste Operations  
and Emergency Response,” as referenced in R 325.18303.  
(3) The provisions of 29 C.F.R. §1910.119 and 29 C.F.R. §1910.119 Appendix A  
have the same force and effect as rules promulgated under the Michigan Occupational  
Safety and Health Act (MIOSHA), 1974 PA 154, MCL 408.1001 to 408.1094.  
(4) The standards adopted in this rule are available from the United States  
Department of Labor, Occupational Safety and Health Administration website:  
(5) The standards adopted in this rule are available for inspection at the Department  
of Licensing and Regulatory Affairs, MIOSHA Regulatory Services Section, 530 West  
Allegan Street, Lansing, Michigan, 48909-8143.  
(6) The standards adopted in this rule may be obtained from the publisher or may be  
obtained from the Department of Licensing and Regulatory Affairs, MIOSHA Regulatory  
Services Section, 530 West Allegan Street, Lansing, Michigan, 48909-8143, plus $20.00  
for shipping and handling.  
History: 1993 AACS; 1999 AACS; 2013 AACS; 2016 AACS.  
R 325.18303 MIOSHA referenced standards.  
Rule 3. The following Michigan occupational safety and health (MIOSHA)  
standards are referenced in these rules. Up to 5 copies of these standards may be  
obtained at no charge from the Michigan Department of Licensing and Regulatory  
Affairs, MIOSHA Regulatory Services Section, 530 West Allegan Street, P.O. Box  
30643, Lansing, Michigan, 48909-8143 or via the internet at website:  
time of adoption of these rules, is 4 cents per page.  
(a) Construction Safety Standard Part 42 “Hazard Communication,” R 408.44201 to  
R 408.44203.  
(b) General Industry Safety Standard Part 92 “Hazard Communication,”  
R 408.19201 to R 408.19203.  
(c) Occupational Health Standard Part 430 “Hazard Communication,” R 325.77001  
to R 325.77003.  
(d) General Industry Safety Standard Part 6 “Fire Exits,” R 408.10601 to  
R 408.10697.  
(e) General Industry Safety Standard Part 12 “Welding and Cutting,”  
R 408.11201 to R 408.11299.  
(f) General Industry Safety Standard Part 55 “Explosives and Blasting Agents,”  
R 408.15501.  
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(g) Occupational Health Standard Part 432 “Hazardous Waste Operations and  
Emergency Response,” R 325.52101 to R 325.52137.  
History: 2013 AACS; 2016 AACS.  
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