(1) The governing authority of any county or municipality shall not enforce any portion of any building codes established and/or imposed under Sections 17-2-1 through 17-2-5 that regulates the construction or improvement of industrial facilities that are engaged in activities designated as manufacturing (sectors 31-33), utilities (sector 22), telecommunications (sector 517), bulk stations and materials (sector 422710), crude oil pipelines (sector 486110), refined petroleum products pipelines (sector 486910), natural gas pipelines (sector 486210), other pipelines (sector 486990) and natural gas processing plants (sector 211112), under the North American Industry Classification System (NAICS).

(2) The governing authority of any county or municipality shall not enforce any portion of any building codes established and/or imposed under Sections 17-2-1 through 17-2-5 which regulates the construction or improvement of buildings located on nonpublic fairgrounds or the construction or improvement of buildings located on the Neshoba County Fairgrounds in Neshoba County, Mississippi.

(3) The governing authority of any county or municipality shall not enforce any portion of any building codes established and/or imposed under Sections 17-2-1 through 17-2-5 which regulates the construction or improvement of a private unattached outdoor recreational structure, such as a hunting or fishing camp. In order for a structure to qualify as a “hunting camp” or “fishing camp” under the provisions of this subsection, the owner must file with the board of supervisors of the county in which the structure is located his signed affidavit stating under oath that the structure is a hunting camp or fishing camp, as the case may be, that he is the owner or an owner of the camp and that the camp is located in an unincorporated area of the county within, near or in close proximity to land upon which hunting or fishing activities legally may take place.

(4) The governing authority of any county or municipality shall not enforce any portion of any building codes established and/or imposed under Sections 17-2-1 through 17-2-5 which regulates the construction or improvement of manufactured housing built according to the Federal Manufactured Home Construction and Safety Standards Act.

(5) The governing authority of Pearl River County or any municipality within such county shall not enforce any portion of any building codes established and/or imposed under Sections 17-2-1 through 17-2-5 which prohibits the use of or requires building permit approval for the use of salvage lumber or green cut timber in building construction provided such timber is for personal use and is not for sale.

(6) The provisions of this section shall not apply to any floodplain management ordinances or regulations necessary for eligibility for the National Flood Insurance Program, and such floodplain management ordinances or regulations shall apply retroactively to any construction or improvement permit granted for any structure exempted under this section before May 22, 2012.