A major review of dairy industry legislation has been opened for public discussion.
The Government launched the review of the Dairy Industry Restructuring Act 2001 (DIRA) in May.
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The DIRA regulates Fonterra's dominance in the market and aims to protect the long-term interests of all farmers, consumers and the wider economy.
Agriculture Minister Damien O'Connor said the review is wide ranging.
"It's looking at open entry and exit obligations, the farm gate milk price settings, contestability for farmers' milk, the risks and costs for the sector, and the incentives or disincentives for dairy to move to sustainable, higher-value production and processing," he said.
Mr O'Connor launched a discussion document at an Outram dairy farm on Friday and is keen to get as much feedback as possible.
"It's important to look at whether the DIRA has achieved its objectives, created unintended consequences, and whether it is still needed in its current form," he said.
"We need everyone with an interest in the success of the dairy sector to take part in a frank appraisal of the issues."
The consultation process runs until 8 February 2019.