(a) Identification of plan—delegation of authority. On March 27, 2023, the EPA signed a Memorandum of Agreement (MOA) that defines policies, responsibilities, and procedures pursuant to 40 CFR part 62, subpart LLL (the “Federal plan”) by which the Federal plan will be administered by the Southwest Clean Air Agency (SWCAA) for designated facilities under the agency's jurisdiction in Clark, Cowlitz, Lewis, Skamania, and Wahkiakum Counties in the State of Washington, excluding Indian Country as defined in 18 U.S.C. 1151.

(b) Identification of sources. The MOA and related Federal plan apply to all sewage sludge incineration (SSI) units, as defined in 40 CFR 62.16045, that commenced construction on or before October 14, 2010. See 40 CFR 62.15855. Subpart LLL of this part does not apply to units that are not located at wastewater treatment plants designed to treat domestic sewage sludge. See 40 CFR 62.15860.

(c) Effective date of delegation. The delegation became fully effective on March 28, 2023, upon the signature of both parties.