DEPARTMENT OF LABOR AND ECONOMIC OPPORTUNITY
DIRECTOR’S OFFICE
CONSTRUCTION SAFETY AND HEALTH STANDARD
(By authority conferred on the director of the 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)
CONSTRUCTION SAFETY AND HEALTH STANDARD
PART 605. METHYLENEDIANILINE (MDA) IN CONSTRUCTION
R 325.60501 Scope, application, adoption, and availability of standards.
Rule 501. (1) These rules apply to all construction operations as defined in the Michigan
occupational safety and health act (MIOSHA), 1974 PA 154, MCL 408.1001 to
408.1094, in which there is exposure to methylenedianiline (MDA), including but not
limited to all of the following:
(a) Construction, alteration, repair, maintenance, or renovation of structures, substrates,
or portions thereof, that contain MDA.
(b) Installation or the finishing of surfaces with products containing MDA.
(c) MDA spill or emergency cleanup, or both, at construction sites.
(d) Transportation, disposal, storage, or containment of MDA or products containing
MDA on the site or location at which construction activities are performed.
(2) Except as provided in subrule (7) of this rule and 29 CFR 1926.60(f)(5), these rules
do not apply to the processing, use, and handling of products containing MDA if initial
monitoring indicates that the product is not capable of releasing MDA in excess of the
action level under the expected conditions of processing, use, and handling that will
cause the greatest possible release, and if no "dermal exposure to MDA" can occur.
(3) Except as provided in subrule (7) of this rule, these rules do not apply to the
processing, use, and handling of products containing MDA if objective data are
reasonably relied upon that demonstrate the product is not capable of releasing MDA
under the expected conditions of processing, use, and handling that will cause the greatest
possible release, and if no "dermal exposure to MDA" can occur.
(4) Except as provided in subrule (7) of this rule, these rules do not apply to the storage,
transportation, distribution or sale of MDA in intact containers sealed in such a manner as
to contain the MDA dusts, vapors, or liquids, except for the provisions of Construction
Safety Standard Part 42. “Hazard Communication,” R 408.44201 to R 408.44204, and 29
CFR 1926.60(e).
(5) Except as provided in subrule (7) of this rule, these rules do not apply to materials in
any form that contain less than 0.1% MDA by weight or volume.
(6) Except as provided in subrule (7) of this rule, these rules do not apply to "finished
articles containing MDA."
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