Regional sewer districts.

Specifies that a board of trustees of a regional water, sewage, or solid waste district (board) must notify the district authority in writing before taking certain actions. Provides that a trustee appointed to a board serves at the pleasure of the appointing authority. Prohibits a regional water, sewage, or solid waste district (district) created after June 30, 2026, from incurring any indebtedness without first obtaining the approval of the county fiscal body.

Specifies that if a district created after June 30, 2026, contains territory in more than one county, the district must first obtain the approval of each county fiscal body in which the district contains territory before incurring any indebtedness. Establishes a timeline for the county fiscal body to approve or deny a district's request to incur indebtedness.