La. Stat. tit. 33 § 4495
Any town, city, or parish which has voted to surrender its powers of supervision, regulation, and control respecting any class of public utilities may reinvest itself with such power by holding an election in the same manner and with all of the same formalities hereinabove provided, and if at the election a majority of the qualified electors voting on any proposition submitted to reinvest the municipality or parish with its powers of supervision, regulation and control the municipality or parish shall be deemed to have reinvested itself with its powers of supervision, regulation and control and such powers shall no longer be exercised by the Louisiana Public Service Commission when the clerk of the municipality or parish files in the office of the Louisiana Public Service Commission and with the Secretary of State a certified copy of the order.
La. R.S. § 33:4495