A moratorium on the demolition of earthquake-damaged buildings in Christchurch has ended.
It was put in place after criticism about the removal of buildings without consent.
Civil Defence says specific work that has been signed off is now continuing.
Two demolition workers were charged with breaching the cordon last week, after Civil Defence said they were found acting suspiciously inside the city's red zone.
National Controller John Hamilton says new accreditation and tighter protocols are being put in place, and all old passes for demolition contractors are being rescinded.