The Memorial Tournament will require fans to wear masks next month, when it becomes the first PGA Tour event to allow spectators during the coronavirus pandemic.

Ohio Gov. Mike DeWine gave approval last week to allow a limited number of spectators at the tournament at Muirfield Village Golf Club in Dublin. The number is being estimated at about 20% of usual attendance.

Among the protocols announced by the tournament on Wednesday were the mask requirement, a health questionnaire upon entry and temperature screenings.

All on-site bleachers and grandstands have been removed, and there will be designated seating corrals throughout the course that will allow for a limited number of spectators.

Upon entry, staff will ask spectators six Centers for Disease Control-related health questions. Anyone with a temperature above 100 degrees will not be permitted to the course. Masks will be required for all attendees and will be given to those who do not bring their own.

Attendees will also be encouraged to bring their own hand sanitizer and there will be no cash sales at concession areas. All shuttle transportation has been canceled, so spectators will park in nearby lots and walk into the venue.

The Memorial Tournament is the sixth event of the PGA Tour’s revised schedule, which begins this week at the Charles Schwab Challenge. The first five are to be played without spectators, including an event at Muirfield Village the week prior to the Memorial.