agencies.
(a) General rule.--Except as provided by section 3765(a)
(relating to prohibitions and restrictions on use of slag
aggregates), contractors and subcontractors engaged in the
construction of highways and roads on behalf of any government
agency may utilize slag aggregates in the construction and
maintenance of highways and roads in the manner approved by the
Department of Transportation pursuant to section 3763(a)
(relating to uniform standards for use of slag aggregates in
construction), including uses designated as permissible in the
department's highway construction manual effective January 1,
2013, and may utilize supplies and suppliers of slag aggregates
approved by the department in the manner provided by section
3763(b).
(b) Limitation.--Nothing in this act shall prohibit
government agencies other than the Department of Transportation
from approving additional uses of slag aggregates in highway and
road construction and maintenance, or from approving additional
supplies and suppliers of slag aggregates.
ยง 3765. Prohibitions and restrictions on use of slag
aggregates.
(a) General rule.--The Department of Transportation may
prohibit or restrict uses of any type, grade or source of supply
of slag aggregates which comply with uniform standards for the
use of slag aggregates in highway and road construction and
maintenance in effect as of January 1, 2013, only if, based on
controlled multisite comparisons between the slag aggregate in
question and other materials, it is shown that that type, grade
or source of supply of slag aggregate will not perform in a
satisfactory manner based on objective, quantifiable and
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