La. R.S. 25:732

Any municipality, incorporated town, lake commission, parish, parish council or similar governmental unit, which shall be designated as a governmental unit hereinafter, may establish within its borders an historic preservation district commission to promote the educational, cultural, economic and general welfare of the public and to take such action by vote of its governing body, that is, the mayor and city council, commissioners, mayor and board of aldermen, city-parish council, or police jury, as the case may be. Said governing body may make such appropriations as are necessary for the purpose of carrying out the provisions of this Chapter.