In keeping with Gov, Greg Abbottâs executive order, Killeen ISD Superintendent John Craft announced Tuesday that face masks will be optional across the district as of June 1. âOur face covering being made optional beginning June 1 really correlates very nicely to the governorâs orders,â Craft said Tuesday during the districtâs school board meeting. On May 18, Abbott issued Executive Order 36 prohibiting government entities, including public school districts, from mandating face masks or restricting activities in response to the COVID-19 pandemic. Craft emphasized the optional face mask policy would be uniform across the district. âDepartments, campuses will not have the latitude to implement their own face covering requirements,â he told the board.