La. Const. art. VI, § 16

(A) Consolidation. A local governmental subdivision may consolidate and merge into itself any special district or local public agency, except a school district, situated and having jurisdiction entirely within the boundaries of the local governmental subdivision. Upon the consolidation and merger, the local governmental subdivision shall succeed to and be vested with all of the rights, revenues, resources, jurisdiction, authority, and powers of the special district or local public agency. A consolidation and merger shall become effective only if approved by a majority of the electors voting thereon in the local governmental subdivision as a whole and by a majority of the electors voting thereon in the affected special district. A local public agency shall be consolidated and merged only if approved by a majority of the electors voting thereon in an election held for that purpose in the local governmental subdivision in which the agency is located. (B) Assumption of Debt. If the special district or local public agency which is consolidated and merged has outstanding indebtedness, the authority provided by this Section shall not be exercised unless provision is made for the assumption of the indebtedness by the governing authority of the local governmental subdivision involved.