The New Jersey Apportionment Commission is a constitutionally-created ten-member commission responsible for redistricting the forty districts of the New Jersey Legislature. The commission is convened after each decennial U.S. Census, and the districts are to be in use for the legislative elections in the following ten years. The commission's members are appointed by the two most successful political parties in the previous gubernatorial election. Each party appoints five members. If the commission cannot agree to an districting plan in a timely manner, the Chief Justice of the Supreme Court of New Jersey is to appoint an eleventh member as a tie-breaking vote.