Full tariff elimination for sheep meat, fruit and vegetables, forestry, seafood and wine ticked all the boxes for Hawke's Bay, Mr Petersen said.
While the deal was not as good as he would have liked for dairy that aspect would have minimal impact on the region.
He described the deal as "a real game-changer" for the Asia-Pacific region in terms of future trade and investment in New Zealand.
While he had not been part of the negotiation team he had spent a lot of time visiting and speaking with people throughout the country in a variety of markets -- his role to convince them there needed to be some sort of reform on the trade front. He said the reactions he received were "very much" positive.
Mr Petersen said while there had been a lot of scepticism that it would get signed off, even up until only a few days ago, he had always been confident it would go through, and said New Zealanders had nothing to fear about the deal.
In an interview last month he described what he called unfounded views about TPP as "irresponsible and verging on scaremongering".
He said from the very start of the TPP proceedings the focus was on New Zealand's best interests.
Securing bilateral free-trade agreements with 11 other countries had achieved that.
Mr Petersen that, said while he had still not seen all the full details about the deal what he had seen already voted in was a big gain for the country.
Prime Minister John Key said the deal would give Hawke's Bay and New Zealand exporters much better access to a market of 800 million people with the financial benefits expected to be at least $2.7 billion by 2030.
"It's great news and I'm excited about it," Mr Petersen said.
Fears that it would impact on the health sector, in terms of paying more for medicines as part of the overall deal, would not impact on individuals, Mr Petersen said, and that was backed up by International Trade Minister Tim Groser.
He said Kiwis would not pay any more for medicine as a result and the "cost of the subsidy bill will not go up (by) any large extent".
Mr Groser said it would cost roughly $4.5 million in the first year to set up the software to provide the additional information that negotiating partners wanted and after that operating costs would be about $2.5m a year -- a "tiny rounding error" on what was a large health budget.
While his work within the TPP had effectively concluded Mr Petersen said he would be kept busy through his work in "agriculture diplomacy" offshore and the European Free Trade question.
