Title: Chair of the Federal Reserve
Content:  The chair of the Board of Governors of the Federal Reserve System is the head of the Federal Reserve, which is the central banking system of the United States. The chair is the "active executive officer" and shall preside at meetings of the Board of Governors of the Federal Reserve System. The chair serves a four-year term after being nominated by the President of the United States and confirmed by the United States Senate; the officeholder serves concurrently as member of the Board of Governors. The chair may serve multiple terms (consecutively or non-consecutively), pending a new nomination and confirmation at the end of each term, with William McChesney Martin as the longest serving chair from 1951 to 1970 and Alan Greenspan as a close second. The chairs cannot be dismissed by the president before the end of their term. The current chair is Jerome Powell, who was sworn in on February 5, 2018. He was nominated to the position by President Donald Trump on November 2, 2017 and later confirmed by the Senate.
Title: Vice Chair of the Federal Reserve
Content:  The vice chair of the Board of Governors of the Federal Reserve System is the deputy head of the Federal Reserve, the central banking system of the United States. The vice chair shall preside at meetings of the Board of Governors of the Federal Reserve System, in absence, of the chair of the Federal Reserve. The vice chair and the vice chair for supervision each serve a four-year term after being nominated by the president of the United States and confirmed by the United States Senate, and they serve concurrently as members of the Board of Governors. Both vice chairs may serve multiple terms (consecutively or non-consecutively), pending a new nomination and confirmation at the end of each term, with Ronald Ransom as the longest serving vice chair from 1936 to 1947. They cannot be dismissed by the president before the end of their term. The current vice chair is Richard Clarida, who was sworn in on September 17, 2018. The inaugural vice chair for supervision was Randal Quarles, who was sworn in on October 17, 2017.
Title: Chair of the Federal Reserve
Content:  The following is a list of past and present chairs of the Board of Governors of the Federal Reserve System. A chair serves for a four-year term after appointment, but may be reappointed for several consecutive four-year terms. Since the Federal Reserve was established in 1914, the following people have served as chair.
Title: Vice Chair of the Federal Reserve
Content:  The following is a list of past and present vice chairs of the Board of Governors of the Federal Reserve System. A vice chair serves for a four-year term after appointment, but may be reappointed for several consecutive four-year terms. Since the Federal Reserve was established in 1914, the following people have served as vice chair.
Title: Chair of the Federal Reserve
Content:  As stipulated by the Banking Act of 1935, the president appoints the seven members of the Board of Governors; they must then be confirmed by the Senate and serve fourteen-year terms. The nominees for chair and vice-chair may be chosen by the president from among the sitting governors for four-year terms; these appointments are also subject to Senate confirmation. The Senate Committee responsible for vetting a Federal Reserve chair nominee is the Senate Committee on Banking.
Title: Structure of the Federal Reserve System
Content:   The seven-member Board of Governors is the main governing body of the Federal Reserve System. It is charged with overseeing the 12 District Reserve Banks and with helping implement national monetary policy. Governors are appointed by the President of the United States and confirmed by the Senate for staggered, 14-year terms. By law, the appointments must yield a "fair representation of the financial, agricultural, industrial, and commercial interests and geographical divisions of the country", and as stipulated in the Banking Act of 1935, the Chairman and Vice Chairman of the Board are two of seven members of the Board of Governors who are appointed by the President from among the 
Title: Vice Chair of the Federal Reserve
Content:  As stipulated by the Banking Act of 1935, the president appoints the seven members of the Board of Governors; they must then be confirmed by the Senate and serve fourteen year terms. The nominees for chair and vice-chairs may be chosen by the president from among the sitting governors for four-year terms; these appointments are also subject to Senate confirmation. The Senate Committee responsible for vetting a Federal Reserve vice chair and vice chair for supervision nominees is the Senate Committee on Banking.
Title: Federal Reserve Board of Governors
Content:  The Board of Governors of the Federal Reserve System, commonly known as the Federal Reserve Board, is the main governing body of the Federal Reserve System. It is charged with overseeing the Federal Reserve Banks and with helping implement the monetary policy of the United States. Governors are appointed by the president of the United States and confirmed by the Senate for staggered 14-year terms.
Title: Chair of the Federal Reserve
Content:  By law, at meetings of the Board the chairman shall preside, and, in his absence, the vice chairman shall preside. In the absence of the chairman and the vice chairman, the Board shall elect a member to act as chairman pro tempore. Under the chair’s leadership, the Board’s responsibilities include analysis of domestic and international financial and economic developments. The board also supervises and regulates the Federal Reserve Banks, exercises responsibility in the nation’s payments system, and administers consumer credit protection laws. One of the chair's most important duties is to serve as the chair of the Federal Open Market Committee (FOMC), which is critical in setting short-term U.S. monetary policy. By law, the chair reports twice a year to Congress on the Federal Reserve's monetary policy objectives. He or she also testifies before Congress on numerous other financial issues and meets periodically with the treasury secretary, who is a member of the president's Cabinet.
Title: Chair of the Federal Reserve
Content:  Chair of the Federal Reserve is a Level I position in the Executive Schedule and thus earns the salary prescribed for that level (US$221,400, as of January 2021).

Question: who appoints the chair of the federal reserve system?
Answer: President of the United States.