The revision of the country's rescue helicopter services is in full swing, with the first major announcements expected next month.
The Ministry of Health and ACC are now in formal negotiations with the three preferred service providers for the northern, central and southern regions.
The ministry said that the new service providers for each region would be announced when the negotiations were concluded.
The first announcement could happen in a few weeks, by the end of September.
Proposed changes in rescue helicopter services have led to controversy, with some communities angry because they could be left without a base.
They were worried about longer flight times and delays could cost lives.
But the ministry insisted that it tried to modernize the service to improve clinical outcomes.
According to spokesperson Andy Inder, the new service would be more integrated with ambulance and hospital services.
"A good air ambulance service has four important elements: optimum time, appropriate clinical staff, the right equipment and the right destination. This good collaboration can improve patient outcomes.
"Therefore, we take the time to work with preferred bidders and district administrations to ensure that patients in urgent need of clinical support get the right clinical care at the right time."