Montana Title 13. Elections § 13-19-306. Returning marked ballots--when--where

(1) After complying with 13-19-301, an elector or the elector's agent or designee may return the elector's ballot on or before election day by either:

(2) Except as provided in 13-21-206 and 13-21-226, in order for the ballot to be counted, each elector shall return it in a manner that ensures it is received prior to 8 p.m. on election day.