NZ went into lockdown for three days from midnight last night, with Auckland and Coromandel expected to be in lockdown for seven days.
Here is what you need to know, and what you need to know across schools, health, shopping, exercise and going out.
Level four - dubbed the "eliminate" phase - means people must stay at home in their bubbles - travelling out only for essential personal movement.
Essential reasons for leaving the home briefly include:• Physical exercise in your neighbourhood• Visiting the supermarket, dairy or pharmacy• Necessary medical care or getting a test
Level 4 measures

People are instructed to stay at home in their bubble other than for essential personal movement• Safe recreational activity is allowed in local area• Travel is severely limited• All gatherings are cancelled and all public venues are closed• Businesses are closed except for essential services, such as supermarkets, pharmacies, clinics, petrol stations and lifeline utilities• Educational facilities are closed• Rationing of supplies and requisitioning of facilities is possible• Reprioritisation of healthcare services

Education
All New Zealand primary and secondary schools are expected to close for on-site learning.
The Ministry of Education said in a memo to schools last night that school hostels and residential special schools should send students home during lockdown. However, an exception will be made for students who cannot safely return home, such as international students.
Auckland Primary Principals' Association president Stephen Lethbridge said last night schools in the region were very well prepared for the transition back to home learning.
"We've learned a lot from each subsequent lockdown, and each time we do it a little better," he said.
That being said, it was going to be difficult for everyone, parents included, to adjust to level 4, he added.
Healthcare professionals are now required to wear Personal Protective Equipment to prevent further spread during the lockdown. Photo / NZME
Health
New Zealanders won't be able to get a Covid jab for at least the next 48 hours while Government officials discuss how to ensure a safe process.
Prime Minister Jacinda Ardern last night said she wanted to ensure vaccinations could still take place in a safe environment.
"We will be considering whether drive-through vaccinations are the best options and looking at what other precautions could be put in place to ensure it was safe."
She said a further update on vaccinations could be expected in the next 24 hours.
Testing will be ramped up in a bid to detect any possible spread. Additional testing stations are being set up.
Meanwhile, healthcare professionals all have to wear Personal Protective Equipment to prevent any further spread.
Pregnant women can expect the same care from their midwives but non-critical appointments may be conducted via video.
Midwives union MERA's co-leader Caroline Canroy said midwives were "well seasoned" and "all geared up" to transition their work to alert level 4.
Royal New Zealand College of General Practitioners medical director Bryan Betty said most general practices would move into a predominantly virtual consultation model.
"Patients would be required to ring up prior to coming to see their GP, very similar to what we saw during last year's lockdown. Those patients who need to be seen in person will be," he said.
Council facilities
Most Auckland Council facilities will be temporarily closed to the public for the next seven days. They include libraries, pools, leisure centres, early childcare centres, community venues and playgrounds. Some public toilets will remain open. Auckland Council's public Wi-Fi at council libraries will be switched off and drinking fountains will also be unavailable under alert level 4.
Ferry passengers disembark the ferry in Devonport, North Shore, Auckland, yesterday. Photo / Brett Phibbs
Public transport
The Government's advice under Alert Level 4 is to stay home and travel on...