This joint resolution proposes an amendment to the United States Constitution, aiming to permanently establish the composition of the Supreme Court. Its primary purpose is to mandate that the Supreme Court shall be composed of exactly nine justices , including one chief justice and eight associate justices . This amendment seeks to codify the current judicial structure into the Constitution, ensuring a fixed number of members for the nation's highest court. For this change to take effect, it requires approval by a two-thirds vote in both the House and Senate, followed by ratification from three-fourths of the state legislatures within seven years.