Redistricting authority: 
U.S. Congressional Districts – Commission. Reapportionment Commission is composed of 9 members: the majority and minority members of each House select 2 members each, these 8 members select a 9th member, who serves as the chairperson of the Commission. (None of these are legislators, nor are they eligible for running for office for 2 elections after the reapportionment).  The party leaders also name one person from each basic Hawaiian island to the Apportionment Advisory Council. The Council advises the Commission on specific matters related to the island units.  The Commission operates by majority vote and creates a redistricting plan. The plan is then open for public comment. The Commission then makes a final redistricting/reapportionplan becomes effective.

State Legislative Districts – Commission. Same as above.