1. In this paragraph, "sign" means a sign that states a restriction imposed under subd. 2. that is at least 5 inches by 7 inches.
2.
a. For the purposes of sub. (1m) (c) 1m., an owner of a residence that is not a single-family residence has notified an individual not to enter or remain in a part of that building, or on the grounds of that building, while carrying a firearm or with a particular type of firearm if the owner has posted a sign that is located in a prominent place near all of the entrances to the part of the building to which the restriction applies or near all probable access points to the grounds to which the restriction applies and any individual entering the building or the grounds can be reasonably expected to see the sign.
am. For the purposes of sub. (1m) (c) 2., 4., and 5., an owner or occupant of a part of a nonresidential building, the state or a local governmental unit, or a university or a college has notified an individual not to enter or remain in a part of the building while carrying a firearm or with a particular type of firearm if the owner, occupant, state, local governmental unit, university, or college has posted a sign that is located in a prominent place near all of the entrances to the part of the building to which the restriction applies and any individual entering the building can be reasonably expected to see the sign.
b. For the purposes of sub. (1m) (c) 2., an owner or occupant of the grounds of a nonresidential building or of land has notified an individual not to enter or remain on the grounds or land while carrying a firearm or with a particular type of firearm if the owner or occupant has posted a sign that is located in a prominent place near all probable access points to the grounds or land to which the restriction applies and any individual entering the grounds or land can be reasonably expected to see the sign.