Montana Department of Transportation

Property & Equipment

Public Involvement

Billings Bypass Record of Decision and Final Environmental Impact Statement

To receive a copy of any of these documents please call 406-444-7228.

The Montana Department of Transportation (MDT) prepares an environmental study as required by the Montana Environmental Policy Act (MEPA) or the National Environmental Policy Act (NEPA) for actions taken by the MDT unless exempted by law. An action may include projects, permits, and studies where MDT expends funds or takes an action affecting the human environment. These environmental studies determine the affects of the action on the social, economic or natural environment and may result in the preparation of an Environmental Assessment or Environmental Impact Statement. For more information regarding the NEPA process, please visit this website.