Montana Title 2. Government Structure and Administration § 2-16-212. Filing

(1) Unless a different time is prescribed by law, the oath of office must be taken, subscribed, and filed within 30 days after the officer has notice of election or appointment or before the expiration of 15 days from the commencement of the term of office when a notice of election or appointment has not been given.

(2) An oath of office, certified by the officer before whom the oath was taken, must be filed within the time required by law, except when otherwise specially provided, as follows: