The first stages of the plan would see returning vaccinated New Zealanders able to go into self-isolation and taking a test on arrival, rather than going into managed isolation and quarantine (MIQ).
Unvaccinated travellers would still go into MIQ, but with less demand the Defence Force would begin withdrawing and some facilities would return to being hotels. A core quarantine capacity would be maintained and scaled up, to become a National Quarantine Service.
The self-isolation period for returning travellers would match that for close contacts under the government's phased approach to Omicron: 10 days under phase one, seven days under phase two and three.
All arrivals will be given three rapid antigen tests, returning results on day 0/1 and on day 5/6, with one extra test. Positive results will be confirmed with a PCR test.
Prime Minister Jacinda Ardern revealed the plan in a speech to Business New Zealand this morning, in which she defended the government's use of MIQ.
"It's easy to hear the word MIQ and immediately associate it with heartache. There is no question that for New Zealand it has been one of the hardest parts of the pandemic ... But the choice to use it undeniably saved lives ... MIQ meant not everyone could come home when they wanted to but it also meant that Covid could not come in when it wanted to, either."
She said the tools used to help battle the health crisis had not stayed the same, and while some may feel anxious about the reopening plan, the isolation, testing and high vaccination rates would help keep the virus from spreading too quickly.
The shorter three-month interval between second and booster dose announced yesterday would mean more people were boosted by the time the first stage hit.
Ardern said the government would be continually monitoring the value of self-isolation, and it was possible it may not be needed in the "not too distant future".
She also confirmed she would lead trade delegations this year to Australia, Asia, the United States and Europe.
"New Zealand is in demand. Our exports are at record highs, people want to live and work here, international students want to study here, our friends and whānau want to return ... Covid laid bare our unsustainable reliance on temporary migrant labour. Immigration will continue to be a part of our economic story, but we have the opportunity now to build resilience into our workforces while also attracting the skills and talent we need. We have a chance to do things differently. I hear much talk of a return to business as usual but we are better than business as usual ... we must now carve our own recovery. On our terms. We are vaccinated, increasingly boosted, and continue to prepare ourselves at home and work with a plan - and so now it is time to move forward together, safely."