The Senate Joint Resolution No. 1, proposed by Zaffirini, seeks to amend the Texas Constitution by establishing the Texas Redistricting Commission. This commission will be responsible for creating redistricting plans for the election of members to the United States House of Representatives, the Texas House of Representatives, and the Texas Senate. The resolution stipulates that no districts for these legislative bodies can be established or altered except as outlined in the new section. The Texas Legislature is tasked with defining the commission's composition and operations through general law. The amendment is set to take effect on January 1, 2030, at which point the existing Legislative Redistricting Board will be abolished.

Additionally, the resolution includes amendments to Article V of the Texas Constitution regarding judicial districts. It specifies that if the Judicial Districts Board does not enact a statewide reapportionment following the federal decennial census, the Texas Redistricting Commission will step in to handle the reapportionment. The resolution also clarifies that judicial districts cannot be smaller than an entire county unless approved by voters. The proposed constitutional amendment will be presented to voters in an election scheduled for November 4, 2025, allowing them to vote on the establishment of the Texas Redistricting Commission.