Hon CHRIS HIPKINS: Ultimately, green means guidance and not requirements. However, we want people to keep up good health habits and to look after those of us in the community who are at higher risk of getting seriously ill from COVID-19. Green is very much the new normal. There are no requirements or restrictions, but there is some additional guidance. With regard to QR codes, people are no longer required to scan at any level of the framework, and businesses are no longer required to provide the mechanism to do that. However, if a variant arises in the world which evades vaccine, or is more deadly, contact tracing will likely become critical once again. So we don't want to throw away all the hard work, expertise, and learning which went into the process the first time around. So we're asking that businesses and others stand ready to be able to put up their QR codes again if required, and for people to be prepared to pull out their tracer app again if it's needed in the future.