Maine Constitution Art. IV, Pt. 3, § 18. Direct initiative of legislation

1. Petition procedure. The electors may propose to the Legislature for its consideration any bill, resolve or resolution, including bills to amend or repeal emergency legislation but not an amendment of the State Constitution, by written petition addressed to the Legislature or to either branch thereof and filed in the office of the Secretary of State by the hour of 5:00 p.m., on or before the 50th day after the date of convening of the Legislature in first regular session or on or before the 25th day after the date of convening of the Legislature in second regular session, except that the written petition may not be filed in the office of the Secretary of State later than 18 months after the date the petition form was furnished or approved by the Secretary of State. If the applicable deadline falls on a Saturday, Sunday, or legal holiday, the period runs until the hour of 5:00 p.m., of the next day which is not a Saturday, Sunday, or legal holiday.

2. Referral to electors unless enacted by the Legislature without change; number of signatures necessary on direct initiative petitions; dating signatures on petitions; competing measures. For any measure thus proposed by electors, the number of signatures shall not be less than 10% of the total vote for Governor cast in the last gubernatorial election preceding the filing of such petition. The date each signature was made shall be written next to the signature on the petition. A signature is not valid if it is dated more than one year prior to the date that the petition was filed in the office of the Secretary of State. The measure thus proposed, unless enacted without change by the Legislature at the session at which it is presented, shall be submitted to the electors together with any amended form, substitute, or recommendation of the Legislature, and in such manner that the people can choose between the competing measures or reject both. When there are competing bills and neither receives a majority of the votes given for or against both, the one receiving the most votes shall at the next statewide election to be held not less than 60 days after the first vote thereon be submitted by itself if it receives more than 1/3 of the votes given for and against both. If the measure initiated is enacted by the Legislature without change, it shall not go to a referendum vote unless in pursuance of a demand made in accordance with the preceding section. The Legislature may order a special election on any measure that is subject to a vote of the people.

3. Timing of elections; proclamation by Governor. The Governor shall, by proclamation, order any measure proposed to the Legislature as herein provided, and not enacted by the Legislature without change, referred to the people at an election to be held in November of the year in which the petition is filed. If the Governor fails to order a measure proposed to the Legislature and not enacted without change to be submitted to the people at such an election by proclamation within 10 days after the recess of the Legislature to which the measure was proposed, the Secretary of State shall, by proclamation, order such measure to be submitted to the people at an election as requested, and such order shall be sufficient to enable the people to vote.