A person, firm, or corporation may offer permissible fireworks, as defined in 50-37-105, of any kind for sale at retail only during the following periods: (1) June 24 through July 5; and (2) December 29 through December 31.
Sale Of Fireworks Restricted To Certain Dates
Mont. Code Ann. § 50-37-106, under General Provisions.
Mont. Code Ann. § 50-37-106