Te Rūnanga o Ngāti Kuia chair Waihaere Mason said the law change gave an opportunity to have an iwi voice at the table.
“It will also help us to become collectively stronger in our partnership where we work together to make decisions for the good of all ... This is a great change and [it's] long overdue.”
Three of New Zealand’s 78 councils had Māori wards; Wairoa District Council, Bay of Plenty Regional Council and Waikato Regional Council.
Nine councils were attempting to run Māori wards in next year's elections, with this week's law change meaning the public could not overturn the council's decision. Previously, if more than 5 per cent of votes signed a petition then the decision went to the public, with the outcome being binding.