Amends the Redistricting Transparency and Public Participation Act. Creates the Independent Redistricting Commission to adopt and file with the Secretary of State a redistricting plan for Legislative and Representative Districts (rather than requiring the Senate and House of Representatives to each establish a committee, or the Senate and House of Representatives may create by joint resolution a joint committee of both chambers, to consider proposals to redistrict the Legislative Districts or Representative Districts). Provides the commissioner selection process and meeting and voting requirements to adopt a plan. Makes conforming changes in the Act. Effective immediately.