"It safe-guards the marine community now for five to 10 years, which is important."
It was officially opened this morning at the Marine Rescue Centre on Mechanics Bay, but has been fully operational for around a month - and has already been tested.
"We've had a number of major incidents, we've already had a few fatalities this year, which is sad for us, but we've run some very big events already from this room ... and it's coped very well with that."
The operations hub is the biggest marine communications centre in the country, and handles around 110,000 emergency calls a year - one call every 23 seconds during peak times.
Justice Minister Judith Collins, who officially opened the centre this morning, said it was a "great Kiwi story".
"The fact that so many of them are volunteers speaks volumes for the culture we have here in New Zealand, they have a tremendous amount of fundraising that goes on and the fact that they are actually so successful is really from the fact they do such a great job and they're so well recognised in the community for what they do," she said.
"They're a great good news story for Kiwi-land."
Coastguard northern region president Roly Linstrom said the team were "thrilled" with the new centre.