The fentanyl epidemic has created new challenges for school systems across the country. Students are overdosing — sometimes on school grounds — in higher numbers, and school systems are racing to respond by stocking up on overdose-reversing antidotes and coming up with ways to support students’ mental health better. School systems in the D.C. region, including in Montgomery County, Maryland, are also tightening up policies when it comes to responding to overdoses on campuses.