The United States Sentencing Commission is an independent agency of the judicial branch of the U.S. federal government. It is responsible for articulating the U.S. Federal Sentencing Guidelines for the federal courts. The Commission promulgates the Federal Sentencing Guidelines, which replaced the prior system of indeterminate sentencing that allowed trial judges to give sentences ranging from probation to the maximum statutory punishment for the offense. It is headquartered in Washington, D.C. The commission was created by the Sentencing Reform Act provisions of the Comprehensive Crime Control Act of 1984. The constitutionality of the commission was challenged as a congressional encroachment on the power of the executive but upheld by the Supreme Court in Mistretta v. United States, . The U.S. Sentencing Commission was established by Congress as a permanent, independent agency within the judicial branch. The seven members of the Commission are appointed by the President and confirmed by the Senate, for a term of six years. The Judicial Conference offers names of potential nominees to the President for nomination. Commission members may be reappointed to one additional term, also with the advice and consent of the Senate. Some Commission members have been appointed to finish out the term of prior members instead of starting their own 6-year term, and therefore, not all Commission members have served six years or more. Three of the members must be federal judges, and no more than four may belong to the same political party. The Attorney General or his designee and the chair of the United States Parole Commission sit as ex officio, non-voting members of the Commission. The Commission requires a quorum of at least four voting members in order to promulgate amendments to the Sentencing Guidelines. The Commission lacked full membership from 2014 to 2022. On August 4, 2022, the Senate confirmed President Biden's seven nominees to the Commission; all the confirmed members were sworn in the next day. Current membership : Former membership As listed on the U.S. Sentencing Commission's website: "Drugs Minus Two Amendment" On April 10, 2014, the Commission unanimously voted to approve the "Drugs Minus Two Amendment." The "Drugs Minus Two Amendment" changed the U.S. Federal Sentencing Guidelines to "reduce the applicable sentencing guideline range for most federal drug trafficking offenses." The Commission voted to make the Amendment retroactive on July 18, 2014, "thereby allowing eligible offenders serving a previously imposed term of imprisonment to file a