Philadelphia's indoor mask mandate returns today: Everything you should know The Citizen 4 years ago Starting Monday, masks are now required in all public indoor spaces in Philadelphia. Source: ABC News 6 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on LinkedIn (Opens in new window) LinkedIn Print (Opens in new window) Print New Indoor Guard at Twin Valley wins regional championshipDateJune 13, 2018In relation toRobesoniaIndoor dining set to resume in Philadelphia, but restrictions remainDateAugust 21, 2020In relation toRobesoniaPhiladelphia restaurants can now expand to 50% indoor capacityDateOctober 2, 2020In relation toRobesonia