La. Stat. tit. 37 § 1901
"Transient merchant" as used in this Part means any person engaging temporarily in a retail or wholesale sale of goods, wares or merchandise, in any place in the State of Louisiana and who, for the purpose of conducting such business, occupies any lot, building, room or structure of any kind. The term shall not be construed to apply to any person selling goods, wares or merchandise of any description, raised, produced, or manufactured by the individual offering them for sale; nor to persons handling vegetables, fruits or perishable farm products at any established city, town or village market; nor to persons operating stores or refreshment stands at resorts or having booths on or adjacent to the property owned or occupied by them; nor to any stands on any fairgrounds; nor to any vendor of soft drinks or refreshments.
"Person" as used in this Part includes any corporation, or partnership, or two or more persons having a joint or common interest.
La. R.S. § 37:1901