Explosive permits — issued by the county sheriff or local chief of police depending upon where the explosives are stored or used — are required if you or your company use or store explosives or blasting agents for any purposes. Contact your county sheriff or police department for a per​mit application. Use permits are issued as needed. Storage permits may be issued for up to one year.

Licenses and permits require a criminal background check.  In most cases a federal explosives license from the Bureau of Alcohol, Tobacco, Firearms, and Explosives (BATFE) is also needed.

Minnesota explosive statutes

Definitions, penalties and other information about explosives is outlined in Minnesota State Statute and Minnesota Administrative Rules. In the rules, all reference to the Bureau of Criminal Apprehension should be read as State Fire Marshal Division, and all references to "superintendent" should be read as State Fire Marshal. An administrative rulemaking process is under way to make this change permanent.