13-2-110. Application for voter registration -- sufficiency and verification of information -- identifiers assigned for voting purposes. (1) An individual may apply for voter registration in person or by mail, postage paid, by completing and signing the standard application form for voter registration provided for in 13-1-210 and providing the application to the election administrator in the county in which the elector resides.
(2) Each application for voter registration must be accepted and processed as provided in rules adopted under 13-2-109.
(3) Except as provided in subsection (4):
(a) an applicant for voter registration shall provide the applicant's Montana driver's license number; or
(b) if the applicant does not have a Montana driver's license, the applicant shall provide the last four digits of the applicant's social security number.
(4) (a) If an applicant does not have a Montana driver's license or social security number, the applicant shall provide as an alternative form of identification:
(i) a current and valid photo identification, including but not limited to a school district or postsecondary education photo identification or a tribal photo identification, with the individual's name; or
(ii) a current utility bill, bank statement, paycheck, government check, or other government document that shows the individual's name and current address.
(b) The alternative form of identification must be:
(i) an original version presented to the election administrator if the applicant is applying in person; or
(ii) a copy of any of the required documents, which must be enclosed with the application, if the applicant is applying by mail.
(5) (a) If information provided on an application for voter registration is sufficient to be accepted and processed and is verified pursuant to rules adopted under 13-2-109, the election administrator shall register the elector as a legally registered elector.
(b) If information provided on an application for voter registration was sufficient to be accepted but the applicant failed to provide the information required in subsection (3) or (4) or if the information provided was incorrect or insufficient to verify the individual's identity or eligibility to vote, the election administrator shall register the applicant as a provisionally registered elector.
(6) Each applicant for voter registration must be notified of the elector's registration status pursuant to rules adopted under 13-2-109.
(7) The secretary of state shall assign to each elector whose application was accepted a unique identification number for voting purposes and shall establish a statewide uniform method to allow the secretary of state and local election officials to distinguish legally registered electors from provisionally registered electors.