About face: Brewers reverse mask policy at American Family Field beginning June 1 The Brewers today have announced several changes to policies for fans attending games at American Family Field. They will go into Tuesday, June 1. In a press release, Brewers President of Business Operations Rick Schlesinger said: “As we move toward 100% capacity, we look forward to the return of policies that will enhance the fan experience throughout American Family Field.” The changes are as follows: MASK POLICY Fans who are fully vaccinated will not be required to wear masks when attending Brewers games at American Family Field. Consistent with the CDC guidance, it is recommended that fans who are not vaccinated continue to wear masks at this time.