40 CFR 57.505 - Amendments of the NSO.
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An NSO shall be amended within three months of submission of any report required under § 57.504 so as to require additional fugitive emission control measures if such report establishes that such additional measures are necessary to assure that the NAAQS will be maintained with a reasonable degree of reliability.
Title 40 published on 2014-07-01
no entries appear in the Federal Register after this date.