The bill establishes a new "Redistricting Act" within Title 22 of the General Laws, creating a state redistricting commission composed of seven members appointed by various legislative leaders and the state ethics commission. The commission is responsible for developing district plans for congressional and state legislative districts, with appointments required by April 1, 2031, and every ten years thereafter. Key provisions include the requirement for the commission to adopt three to five district plans by October 15, 2031, hold a minimum of six public meetings for community input, and maintain transparency by providing public access to records and testimony. The commission must ensure that the proposed plans are based on community interests, adhere to strict eligibility criteria to prevent conflicts of interest, and comply with specific requirements regarding population equality and compactness.

Additionally, the bill prohibits the use of partisan data and the creation of district plans that favor political parties or incumbents, while ensuring that congressional districts are equal in population and that deviations for state legislative districts do not exceed 5%. The commission is required to submit its adopted plans, along with evaluations and explanatory statements, to the Secretary of the Senate and the Clerk of the House by October 15, 2031, and every September 1 of each year ending in one thereafter. The legislature can select one district plan from each set without amendments for gubernatorial approval. The bill also allows for judicial review, enabling individuals who participated in public hearings to appeal the commission's plans to the state Supreme Court within 30 days, with the court limited to affirming or annulling the plans without modification. The act will take effect upon passage.