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42 U.S.C. 7401 et seq.
43 FR 51393, Nov. 3, 1978, unless otherwise noted.
Clean Air Act, sec. 111(d).
49 FR 8613, Mar. 8, 1984, unless otherwise noted.
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Letter from the State of Maryland, Department of the Environment, submitted April 3, 2020, certifying that there are no existing sewage sludge incineration units within the State of Maryland that are subject to 40 CFR part 60, subpart MMMM.
[86 FR 8700, Feb. 9, 2021, as amended at 86 FR 13459, Mar. 9, 2021]