Q&A Spotlight! 🌟 Q: What does PCBs mean? A: PCBs stands for Polychlorinated Biphenyls, a class of toxic chemicals once used in paints, caulking, sealants, and electrical components—especially in school buildings constructed before 1979. PCBs are tightly regulated due to their environmental and health risks, making proper identification, testing, and removal essential during modernization or demolition projects. Understanding PCB regulations helps facilities leaders protect students, staff, and