Charter schools are a "deliberate attack" on the public education system and the Greens say they will reintegrate them if elected next year.
The Green Party reshuffled its portfolios today and co-leader Metiria Turei is now in charge of speaking on education for the party.
She came out swinging saying the Government was undermining the public school system through national standards, Novopay, the Christchurch schools announcement and charter schools.
Charter schools were a "deliberate attack on the public education system" and Turei said the Government should be on notice that she would seek their reintegration.
Turei had not discussed the matter with Labour.
"If a charter school is established, they need to expect that a change in Government is likely to mean a change in their status," she said.
Charter schools would make the educational achievement of the most vulnerable children worse, she added.
"We make to make that really explicit to the Government and to business," Turei said
In other moves MP Julie Anne Genter will become associate climate change spokeswoman and David Clendon picks up justice.