The School Reform Commission is scheduled to have a first reading on a new charter policy Thursday and would presumably adopt it in March. Charter officials said the policy, which would govern charter school amendments, is onerous and represents "an overreach" by the school system, said Amy Hollister, CEO of Northwood Academy Charter School in Frankford. She and others said the policy could require them to clear even small school changes through the district, a violation, Hollister said, of Pennsylvania charter law.