The NIRB has jurisdiction to conduct impact assessments on project proposals within the land and marine areas of the Nunavut Settlement Area. The Nunavut Settlement Area comprises approximately two million square kilometres and shares borders with the Northwest Territories, Manitoba, Nunavik Marine Region, Newfoundland and Labrador, and the Canadian Offshore. The NIRB’s jurisdiction includes the Outer Land Fast Ice Zone off of the eastern coast of Baffin Island which extends out beyond the Territorial Sea Boundary.

Additionally, the NIRB may upon request by Government or, with the consent of Government, upon request by a Designated Inuit Organization, review a project proposal located outside of the Nunavut Settlement Area which may have significant adverse ecosystemic or socio-economic effects on the Nunavut Settlement Area.

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