Supreme Court justices, court of appeals judges, and district court judges are nominated by the President and confirmed by the United States Senate, as stated in the Constitution. The names of potential nominees are often recommended by senators or sometimes by members of the House who are of the President's political party. The Senate Judiciary Committee typically conducts confirmation hearings for each nominee. Article III of the Constitution states that these judicial officers are appointed for a life term. The federal Judiciary, the Judicial Conference of the United States, and the Administrative Office of the U.S. Courts play no role in the nomination and confirmation process.

Court of appeals and district court judgeships are created by legislation that must be enacted by Congress. The Judicial Conference (through its Judicial Resources Committee) surveys the judgeship needs of the courts every other year. A threshold for the number of weighted filings per judgeship is the key factor in determining when an additional judgeship will be requested. Other factors may include geography, number of senior judges, and mix of cases. The Judicial Conference presents its judgeship recommendations to Congress.

The Constitution sets forth no specific requirements. However, members of Congress, who typically recommend potential nominees, and the Department of Justice, which reviews nominees' qualifications, have developed their own informal criteria.

One is not nominated or appointed to the position of chief judge (except for the Chief Justice of the United States); they assume the position based on seniority. The same criteria exists for circuit and district chiefs. The chief judge is the judge in regular active service who is senior in commission of those judges who are (1) 64 years of age or under; (2) have served for one year or more as a judge; and (3) have not previously served as chief judge.

The "Rule of 80" is the commonly used shorthand for the age and service requirement for a judge to assume senior status, as set forth in Title 28 of the US. Code, Section 371(c). Beginning at age 65, a judge may retire at his or her current salary or take senior status after performing 15 years of active service as an Article III judge (65+15 = 80). A sliding scale of increasing age and decreasing service results in eligibility for retirement compensation at age 70 with a minimum of 10 years of service (70+10=80). Senior judges, who essentially provide volunteer service to the courts, typically handle about 15 percent of the federal courts' workload annually.

A U.S. bankruptcy judge is a judicial officer of the U.S. district court who is appointed by the majority of judges of the U.S. court of appeals to exercise jurisdiction over bankruptcy matters. The number of bankruptcy judges is determined by Congress. The Judicial Conference of the United States is required to submit recommendations from time to time regarding the number of bankruptcy judges needed. Bankruptcy judges are appointed for 14-year terms.