The citizen-initiated referendum question would ask whether people should be required to show photo identification in order to vote in Maine.

Under the proposal, voters who don’t have ID or forget to bring it with them would still be allowed to cast a ballot by filling out a provisional ballot.

A citizen ballot initiative launched by a local conservative political action committee is aiming to put a voter identification law on Maine’s ballot next year, as the campaign said it has enough signatures after petitioning on Election Day.