(work in or near perennial streams)

Required for private or public individuals planning work that alters the bed or banks of a perennial stream.

310 Permits are administered by your local Conservation Districts

310 Permit applications can be completed AND submitted in Gilly

310 Permit Details and How to Apply

(government projects in streams)

For government agencies or contractors working on behalf of an agency planning work that may affect a stream or river.

Private individuals do not apply for this permit directly.

SPA 124 Permit Details and how to apply

(development in regulated floodplains)

For projects involving construction, fill, excavation or other development within a regulated floodplain.

Floodplain permits are administered by your local city or county Floodplain Administrator.

Floodplain Permit Details and how to apply

(wetlands and navigable waters)

For projects involving dredged or fill material in waters or wetlands of the U.S. or work in, over or under a navigable waterway.

These permits are reviewed by the U.S. Army Corps of Engineers.

Section 404 / 10 Permit Details and how to apply

(temporary turbidity during construction)

For short-term construction or stream work that may cause sediment or cloudy water in state waters.

318 Authorization is reviewed by the Montana Department of Environmental Quality (DEQ).

318 Authorization Details and how to apply

(state water quality certification)

For certain projects requiring a federal permit or license that may result in a discharge to Montana waters.

401 Certification is handled by the Montana Department of Environmental Quality (DEQ).

401 Certification Details and How to Apply

(use of state-owned riverbed)

For structures or activities located on or over the bed of a state-owned navigable river.

Authorization is obtained through the Montana Department of Natural Resources & Conservation (DNRC)

Navigable River Land Use Details and how to apply