Miss. Code § 49-23-35
There shall be posted upon every outdoor advertising sign, display or device erected or maintained adjacent to any highway constituting a part of the interstate or primary system of highways and restricted or regulated by Sections 49-23-1 through 49-23-33, Mississippi Code of 1972, except those signs, displays or devices as specified in subsections (1)(a), (b), (c) and (f), and (2)(a), (b) and (c) of Section 49-23-5, Mississippi Code of 1972, the name or logo of the owner of such sign, display or device if the owner of such outdoor advertising is separate and distinct from the owner of the real property upon which such outdoor advertising is located.
The name or logo of the owner shall be permanently written on each such outdoor advertising sign, display or device if it is the intention of the parties that ownership of such outdoor advertising is, and shall be, separate from the ownership of the real property upon which it is situated.
Each such outdoor advertising sign, display or device heretofore or hereafter erected or maintained without such notice of ownership being posted as aforesaid shall be construed to have attached to the real estate and to be owned by the owner of the real estate upon which the said outdoor advertising is located.
Miss. Code § 49-23-35