In the casino, only every other slot machine will open, leaving 1,600 available. The company says it will provide free masks and require them for employees and guests in public areas. Guests will have their temperatures checked at the casino floor entrance through a thermal imaging device, MGM officials told the state. Visitors will have to follow screening procedures and social distancing rules. Monday, and visitors can expect to see many changes intended to prevent the spread of coronavirus. MGM National Harbor was set to reopen its doors to the public at 6 a.m. No more than one person or family unit is allowed per 200 square feet. Groups up to 100 people could gather, depending on the size of the facility. Larger gatherings will also be allowed under the full phase two. The list of businesses reopening for the first time includes farmer's markets many personal service providers, including tattoo parlors, spas, massage parlors and recreation venues, including bowling alleys and amusement parks. Monday, allowing casinos, shopping malls and gyms to reopen for the first time since shutdowns to slow the spread of coronavirus began. Prince George's County will fully move into phase two of Maryland's reopening plan at 5 p.m.