(a) A board of trustees may change the boundaries of a zone or dissolve a zone by following the procedures in Sections 9090 and 9091.
(b) Except as provided in Section 56886 of the Government Code, a local agency formation commission shall have no power or duty to review and approve or disapprove a proposal to form a zone, a proposal to change the boundaries of a zone, or a proposal to dissolve a zone.