(a) A designation of an LEA may be withdrawn by the local governing bodies that originally made the designation. Notice of the withdrawal shall be given to the board a minimum of 90 days in advance of the desired effective date of the withdrawal. This shall be done by a local governing body resolution or other official document in the same manner the designation was made. The notice of withdrawal shall specify whether a new local agency is to be designated, or whether the local governing body intends to have the Board become the new enforcement agency. If the notice of withdrawal provides that a new local agency is to be designated, then the withdrawal of designation shall be expressly conditioned on board approval of the new designation. If the notice of withdrawal states that it is the local governing body's intention for the board to become the new enforcement agency, then the withdrawal of designation should not become effective until the Board notifies the local governing body that it is prepared to assume responsibility as the enforcement agency. The Board shall provide such notification on or before: (1) the end of the current fiscal year; or (2) 90 days after the notice of withdrawal is given to the Board, whichever is later. The Board shall then become the enforcement agency.

(b) All enforcement actions, pending violations, orders of corrections, request for technical reports, or other enforcement agency efforts to achieve compliance with state requirements (including LEA enforcement actions and state minimum standards and permits) which were in effect under the departing LEA shall remain in effect under the jurisdiction of the new enforcement agency.

(c) Notice of designation of a new local agency shall be made in the manner specified in Section 18051.