REAPPORTIONMENT. CONGRESSIONAL DISTRICTS. REFERENDUM STATUTE. State Congressional districts are reapportioned every ten years following the federal census. Chapter 535 (AB 301), enacted by the 1981 Legislature, revises boundaries of the existing 43 Congressional districts and adds 2 new Congressional districts. This referendum petition, if signed by the required number of electors and filed with the Secretary of State within 90 days of the enactment of AB 301, will: (1) Require that this statute be placed on the ballot at an election, and (2) Prevent the statute from taking effect unless it is adopted by majority vote