(a) Instead of the requirements imposed by an applicable requirement
or a state only requirement as defined in §122.10 of this title (relating
to General Definitions), a permit holder of a federal operating permit may
comply with more stringent or equivalent requirements, provided the requirements:
(1) are established by §122.148(c)(1)(B) of this title
(relating to Permit Shield) for streamlining multiple, duplicative, redundant,
and/or contradicting applicable requirements or state only requirements; and
(2) are adequate to assure compliance to the same extent
as the applicable requirements or state-only requirements being superseded
by a more stringent or equivalent requirement.
(b) A determination under subsection (a) of this section may
include a method change (i.e., either a change to a commission monitoring
or testing procedure which was previously approved by EPA or an alternative
to an EPA-approved monitoring or test method) if approved by EPA.
(c) The more stringent, equivalent, or alternative requirement
established by the executive director under this section is approved for the
emission unit by EPA if:
(1) it is a term or condition of a federal operating permit;
and
(2) EPA has not objected to the permit as required by §122.350
of this title (relating to EPA Review).
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