Charter schools are tuition-free, independently run public schools that operate free from many regulations imposed on district schools. In exchange, charter schools are held accountable for results. If executed well, the charter school sector has enormous potential as illustrated by the growing number of charter schools achieving phenomenal results with disadvantaged students. If executed poorly, chartering can reproduce the same patterns of mediocrity and failure rampant in public education. Public Impact has deep experience informing charter policy, strengthening charter authorizing, and devising strategies to help the sector succeed.