The change came after a federal judge struck down the CDC's face mask mandate for public transportation.
Universal Hollywood will no longer require face masks or proof of COVID-19 vaccination.
Universal Orlando requiring workers to get COVID-19 vaccine or be tested weekly starting in February
The new policy matches a federal regulation that may be struck down by the U.S. Supreme Court.
Theme park news: Omicron won’t change Disney World NYE / Swan lawsuit / Universal’s ‘Harry Potter’ contract
Other large New Year's Eve celebrations are being altered, but not at Disney World.
The change comes seven months after Universal dropped its indoor mask mandate for guests.