Me. Const. art. IV, pt. 3, § 1-A

A Legislature which is required to apportion the districts of the House of Representatives or the Senate, or both, under Article IV, Part First, Section 2, or Article IV, Part Second, Section 2, shall establish, within the first 3 calendar days after the convening of that Legislature, a commission to develop in accordance with the requirements of this Constitution, a plan for apportioning the House of Representatives, the Senate, or both.

The commission shall be composed of 3 members from the political party holding the largest number of seats in the House of Representatives, who shall be appointed by the Speaker; 3 members from the political party holding the majority of the remainder of the seats in the House of Representatives, who shall be appointed by the floor leader of that party in the House; 2 members of the party holding the largest number of seats in the Senate, who shall be appointed by the President of the Senate; 2 members of the political party holding the majority of the remainder of the seats in the Senate, to be appointed by the floor leader of that party in the Senate; the chairperson of each of the 2 major political parties in the State or their designated representatives; and 3 members from the public generally, one to be selected by each group of members of the commission representing the same political party, and the third to be selected by the other 2 public members. The Speaker of the House shall be responsible for organizing the commission and shall be chairperson pro tempore thereof until a permanent chairperson is selected by the commission members from among their own number. No action may be taken without a quorum of 8 being present. The commission shall hold public hearings on any plan for apportionment prior to submitting such plan to the Legislature.

Public members of the commission shall receive the same rate of per diem that is paid to Legislators for every day's attendance at special sessions of the Legislature as defined by law. All members of the commission shall be reimbursed for actual travel expenses incurred in carrying out the business of the commission. The Legislature which is required to apportion shall establish a budget for the apportioning commission within the state budget document in the fiscal year previous to the fiscal year during which the apportioning commission is required to convene and shall appropriate sufficient funds for the commission to satisfactorily perform its duties and responsibilities. The budget shall include sufficient funds to compensate the chairperson of the commission and the chairperson's staff. The remainder of the appropriation shall be made available equally among the political parties represented on the commission to provide travel expenses, incidental expenses and compensation for commission members and for partisan staff and operations.