Controversial new foreshore and seabed legislation is expected to pass within months.

The Government has confirmed it'll go ahead with changing the Marine and Coastal Areas Act.

It follows a Supreme Court ruling, opposing an original Court of Appeal decision that could've made it easier for iwi to have ownership rights over coastlines.

Treaty Negotiations Minister Paul Goldsmith says there will be a reasonable hurdle to get over if a group wants a customary marine title.

"The Supreme Court dealt with some of the issues that we were concerned about, but not all."

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