The Association for Preservation Technology DC Chapter is proud to support the USGBC Center for Green School’s International Green Apple Day of Service Campaign. As advocates for historic properties in the DC area, APT DC’s membership cares deeply for those greenest of green buildings – the ones that are already built! The majority of school structures in our nation’s capital are historic properties in historically significant neighborhoods, but like many school districts around the US, the buildings suffer from chronically low school system budgets.