The Wisconsin Fishing Expo, held at the Alliant Energy Center Expo Hall, DOES NOT require proof of vaccination status for entry.
Dane County currently has a mask mandate: https://publichealthmdc.com/documents/2022-01-26_Order_23.pdf. Exemptions do apply. It will be up to attendees to self-govern. Free masks and hand sanitizing stations will be available at entry to those who need them.