At a press conference on Monday, he said there was no particular reason why the government had not yet come through on that issue, although it was a matter of “selling” it to the people.
Puna said the people of Atiu, Mangaia and Aitutaki would be the ones most affected.
“As you can imagine, an issue as major as that needs time for the people to get their heads around it, and more importantly to accept it. But it’s still alive,” Puna said.
His comments came on the back of former Aitutaki MP Teina Bishop’s push for the Constitution Amendment Bill to be tabled in Parliament in CINews last Saturday.
The prime minister added that no date had yet been set for the 2018 General Election, or for when Parliament would next sit.