The property reopenings will complete the reopening process for every one of the operator's properties around the world following COVID-19-enforced closures.
Park MGM is the Las Vegas Strip's newest destination resort, being completed in late 2018.
Both Park MGM and NoMad Las Vegas will open with an extensive list of health and safety procedures; meanwhile, the Four Seasons Las Vegas property will reopen on 25 September.
Anton Nikodemus, president of MGM Resorts’ Las Vegas Portfolio, said, “As we looked toward our reopening, we identified an opportunity to be responsive to recurring guest demand for a fully non-smoking casino resort on The Strip.
"With an expansive Las Vegas portfolio, MGM Resorts is able to offer an array of options for visitors, all within the MGM Resorts family.”
Bill Hornbuckle, MGM Resorts CEO and president, said: “Opening Park MGM and NoMad represent significant milestones, as they are the last of our properties to welcome back employees and guests alike.
"The last six months have presented extraordinary challenges and I could not be prouder of the MGM Resorts team for the tireless effort required to get us here.
"There is much work ahead as we remain focused on the health and safety of our employees and guests, but this is an important moment for us.”
