DEPARTMENT OF LABOR AND ECONOMIC OPPORTUNITY
DIRECTOR'S OFFICE
GENERAL INDUSTRY AND CONSTRUCTION SAFETY AND HEALTH
STANDARD
(By authority conferred on the director of the Michigan department of labor and
economic opportunity by sections 14, 16, 19, 21, and 24 of the Michigan occupational
safety and health act, 1974 PA 154, MCL 408.1014, 408.1016, 408.1019, 408.1021, 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)
PART 311. BENZENE
R 325.77101. Scope, applicability, adoption, and availability of standards.
Rule 1. (1) These rules apply to all occupational exposures to benzene, Chemical
Abstracts Service Registry No. 71-43-2, except as provided in subrules (2) and (3) of this
rule.
(2) These rules do not apply to any of the following:
(a) The storage, transportation, distribution, dispensing, sale, or use of gasoline, motor
fuels, or other fuels that contain benzene after its final discharge from bulk wholesale
storage facilities, except that operations which dispense gasoline or motor fuels for more
than 4 hours per day in an indoor location are covered by these rules.
(b) Loading and unloading operations at bulk wholesale storage facilities which use
vapor control systems for all loading and unloading operations. However, such operations
are subject to the provisions of Occupational Health Standard Part 430. “Hazard
Communication” and the hazard communication provisions of sections 14a to 14m of the
Michigan occupational safety and health act (MIOSHA), 1974 PA 154, MCL 408.1014a
to 408.1014m.
(c) The storage, transportation, distribution, or sale of benzene or liquid mixtures that
contain more than 0.1% benzene in intact containers or in transportation pipelines while
sealed in a manner to contain benzene vapors or liquid. However, such storage,
transportation, distribution, or sale is subject to the provisions of Occupational Health
Standard Part 430. “Hazard Communication” and the hazard communication provisions
of sections 14a to 14m of the Michigan occupational safety and health act (MIOSHA),
1974 PA 154, MCL 408.1014a to 408.1014m.
(d) Containers and pipelines that carry mixtures which are less than 0.1% benzene.
(e) Natural gas-processing plants that process gas which contains less than 0.1%
benzene.
(f) Work operations where the only exposure to benzene is from liquid mixtures that
contain 0.5% or less of benzene, by volume, or the vapors released from the liquids until
September 12, 1988; work operations where the only exposure to benzene is from liquid
mixtures that contain 0.3% or less of benzene, by volume, or the vapors released from the
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