The Maryland Alliance of Public Charter Schools (MAPCS) supports quality public charter school education on behalf of students and families. RT ≠ endorsement. The Maryland Alliance of Public Charter Schools supports quality public charter school education on behalf of students and families. The Maryland Alliance of Public Charter Schools (“Alliance”) is a non-partisan group that serves as a voice for charter school communities so we can: • Advocate for equitable and transparent conditions for public charter schools; • Offer support to new and existing public charter schools; and • Drive the discussion around innovative educational practices that lead to positive outcomes for students.