The requirements to be a Supreme Court Justice are not explicitly stated in the U.S. Constitution. However, there are some preferred qualifications that have emerged over the long history of the court. Here are some key points from the search results:

• Education: The Constitution does not require a Justice to have a law degree or attend law school, but all Justices have been trained in the law. Most Justices tend to begin their tenure while in their 40s or 50s and may remain with the court as long as they wish or until they are impeached for improper behavior. Many Justices studied law under a mentor because there were few law schools in the country during the 18th and 19th centuries.

• Experience: To be eligible to serve as an appellate or Supreme Court Justice in California, a person must have practiced law for at least 10 years. The Department of Justice reviews nominees qualifications, and members of Congress typically recommend potential nominees.

• Citizenship: Only applicants who are U.S. citizens will be considered for the Supreme Court Fellows Program.

• Selection process: The President nominates a suitable candidate for the Supreme Court, and the Senate must vote to confirm the candidate. The Supreme Court Fellows Commission selects fellows through a highly competitive process that includes review of submitted materials and interviews of finalists. The Senate Judiciary Committee typically conducts confirmation hearings for each nominee.

In summary, there are no specific requirements for becoming a Supreme Court Justice, but some preferred qualifications have emerged over time. Justices are typically trained in the law, have practiced law for at least 10 years, and are U.S. citizens. The selection process involves nomination by the President, confirmation by the Senate, and review by the Supreme Court Fellows Commission or the Department of Justice.