40 C.F.R. § 57.505
Amendments of the NSO.
Cite as 40 C.F.R. § 57.505 (2026)
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.
- Cross-references to the CFR
- 57.504