It was an Auckland Regional Council restriction so would cover the area that was covered by the ARC. It will remain until or if it is changed by the joint authority. I have not been able to confirm about further north. I cantacted a guy at the Regional Council here who had contacts up north but was unable to get confirmation. I suspect it does not apply anywhere other than ARC area, but these things are constantly under review and could change at any time. The guy I contacted at Ecan had no desire to ban them--was more interested in cockatoos and ravens