DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS
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 MCL 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 490. PERMIT-REQUIRED CONFINED SPACES
R 325.63001 Scope.
Rule 1. (1) These rules establish the minimum requirements for the practices and
procedures to protect employees from the hazards associated with entry into permit-
required confined spaces.
(2) The provisions of these rules shall be applied unless they conflict with specific
requirements for confined space entry in any other standard.
(3) The regulations adopted in these rules do not apply to the construction industry,
agricultural operations, or shipyard employment.
History: 1993 AACS; 1998-2000 AACS; 2017 AACS.
R 325.63002 Adoption of federal standard.
Rule 2. (1) The following federal occupational safety and health administration
(OSHA) regulations are adopted by reference in these rules:
(a) 1910.146 "Permit Required Confined Spaces," effective December 27, 2011.
(b) Appendix A “Permit-required confined space decision flow chart,” effective
December 1, 1998.
(c) Appendix B “Procedures for atmospheric testing,” effective June 29, 1993.
(d) Appendix C “Examples of permit-required confined space programs,” effective
June 29, 1993.
(e) Appendix D “Confined space pre-entry check list,” effective June 29, 1993.
(f) Appendix E “Sewer system entry,” effective May 19, 1994.
(g) Appendix F “Rescue team or rescue service evaluation criteria,” effective
December 1, 1998.
(2) The regulations adopted in these rules have the same force and effect as rules
promulgated under 1974 PA 154, the Michigan Occupational Safety and Health Act
(MIOSHA), MCL 408.1001 to 408.1094.
(3) The regulations adopted in these rules are available from the United States
Department of Labor, Occupational Safety and Health Administration website: