(a) A sport shooting range that is operated and is not in violation of state law at the time of the enactment of an ordinance or resolution shall be permitted to continue in operation even if the operation of the sport shooting range at a later date does not conform to the new ordinance or resolution or amendment to an existing ordinance or resolution.

(b) A sport shooting range that is in existence as of the effective date of this act and operates in compliance with generally accepted operation practices, even if not in compliance with an ordinance or resolution of a local unit of government, shall be permitted to do all of the following within its preexisting geographic boundaries if in compliance with generally accepted operation practices:

(1) Repair, remodel or reinforce any improvement or facilities or building or structure as may be necessary in the interest of public safety or to secure the continued use of the building or improvement;

(2) reconstruct, repair, rebuild or resume the use of a facility or building damaged by fire, collapse, explosion, act of God or act of war occurring after the effective date of this act. The reconstruction, repair or restoration shall be completed within one year following the date of the damage or settlement of any property damage claim. If reconstruction, repair or restoration is not completed within one year as provided in this subsection, such reconstruction, repair or restoration may be terminated in the discretion of the local unit of government; or

(3) do anything authorized under generally accepted operation practices, including, but not limited to:

(A) Expand or enhance its membership or opportunities for public participation; and

(B) reasonably expand or increase facilities or activities.