40 CFR § 62.9121
Identification of sources—negative declaration
June 9, 2020
Letter from the Oklahoma Department of Environmental Quality, dated November 14, 2011, certifying that there are no known existing sewage sludge incineration (SSI) units subject to 40 CFR part 60, subpart MMMM, within its jurisdiction.
[80 FR 24222, Apr. 30, 2015]