DEPARTMENT OF LABOR AND ECONOMIC OPPORTUNITY
DIRECTOR'S OFFICE
GENERAL INDUSTRY SAFETY AND HEALTH STANDARD
Filed with the secretary of state on May 6, 2021
These rules take effect immediately upon filing with the secretary of state unless adopted
under section 33, 44, or 45a(6) of the administrative procedures act of 1969, 1969 PA 306,
MCL 24.233, 24.244, or 24.245a. Rules adopted under these sections become effective 7
days after filing with the secretary of state.
(By authority conferred on the director of the department of labor and economic
opportunity by sections 14 and 24 of the Michigan occupational safety and health act, 1974
PA 154, MCL 408.1014 and 408.1024, and Executive Reorganization Order Nos. 1996-1,
1996-2, 2003-1, 2008-4, 2011-4, and 2019-3, MCL 330.3101, 445.2001, 445.2011,
445.2025, 445.2030, and 125.1998)
R 325.50091 of the Michigan Administrative Code is amended, and R 325.50092 and R
325.50093 are rescinded, as follows:
PART 312. 1,3-BUTADIENE
R 325.50091. Scope, applicability, adoption, and availability of standards.
Rule 1. (1) These rules apply to all occupational exposures to 1,3-Butadiene (BD), chemical
abstracts service registry no. 106-99-0, in all industries subject to the Michigan occupational
safety and health act (MIOSHA), 1974 PA 154, MCL 408.1001 to 408.1094.
(2) These rules replace all references to 1,3-Butadiene contained in Table G-1-A in General
Industry Safety and Health Standard Part 301. “Air Contaminants for General Industry,” as
referenced in this rule.
(3) All of the following provisions apply as used in these rules:
(a) A reference to 29 CFR 1910.133, “Eye and face protection,” in 29 CFR 1910.1051(i),
means General Industry Safety and Health Standard Part 433. “Personal Protective
Equipment,” and Construction Safety and Health Standard Part 6. “Personal Protective
Equipment,” as referenced in this rule.
(b) A reference to 29 CFR 1910.134, “Respiratory Protection,” in 29 CFR 1910.1051(h) and
(k), means General Industry and Construction Safety and Health Standard Part 451.
“Respiratory Protection,” as referenced in this rule.
(c) A reference to 29 CFR 1910.1200 and 1926.59, “Hazard Communication,” in 29 CFR
1910.1051(l), means Construction Safety Standard Part 42. “Hazard Communication,”
General Industry Safety Standard Part 92. “Hazard Communication,” and Occupational
Health Standard Part 430. “Hazard Communication,” as referenced in this rule.
February 18, 2021