A valid fishing license is required for all types of fishing on state waters. To fish in Montana, most anglers need two licenses: a Conservation License and a Fishing License.

A Conservation License is needed before you can buy any fishing or hunting license that Fish, Wildlife & Parks (FWP) issues. Conservation license applicants are required to provide their social security number in addition to the information usually requested. A valid driver's license or a valid photo ID is required to purchase a license.

A fishing license allows a person to fish for and possess any fish or aquatic invertebrate authorized by the state's fishing regulations. It is nontransferable and nonrefundable. The license enables one to fish from March 1 through the end of February of the following year.