Far North iwi say they plan to limit access to Ninety Mile Beach for cars and tour buses after their Treaty agreement is passed into law.
Parliament this morning began the first reading of the Te Hiku Claims Settlement Bill, which gives effect to the agreement between the Crown and four iwi - Ngati Kuri, Te Aupouri, Ngai Takoto and Te Rarawa.
Once passed, the legislation would establish a joint committee made up of iwi members and local body officials who would be tasked with co-managing Ninety Mile Beach.
Te Rarawa leader Haami Piripi said the committee would look at "cultural and physical changes" to the famous beach.
He told Radio New Zealand that one of the biggest problems was the number of vehicles, in particular heavy buses, driving on the beach.
The iwi was concerned about pollution and damage to the land and wildlife.