Regulations last checked for updates: Jan 30, 2025

Title 40 - Protection of Environment last revised: Nov 08, 2025
All TitlesTitle 40Chapter IPart 62Subpart LL - Subpart LL—Oklahoma
View all text of Subpart LL [§ 62.9100 - § 62.9191]
§ 62.9121 - Identification of sources—negative declaration.

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]
authority: 42 U.S.C. 7401
source: 43 FR 51393, Nov. 3, 1978, unless otherwise noted.
cite as: 40 CFR 62.9121
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