The president earns a $400,000 annual salary, along with a $50,000 annual expense account, a $100,000 non-taxable travel account and $19,000 for entertainment. The most recent raise in salary was approved by Congress and President Bill Clinton in 1999 and went into effect in 2001.
The White House in Washington, D.C. serves as the official place of residence for the president; he is entitled to use its staff and facilities, including medical care, recreation, housekeeping, and security services. Naval Support Facility Thurmont, popularly known as Camp David, is a mountain based military camp in Frederick County, Maryland used as a country retreat and for high alert protection of the president and his guests. Blair House, located adjacent to the Old Executive Office Building at the White House Complex and Lafayette Park, is a complex of four connected townhouses exceeding 70,000 square feet (6,500 m2) of floor space which serves as the president's official guest house and as a secondary residence for the president if needed.
For ground travel, the president uses the presidential state car, which is an armored limousine built on a heavily modified Cadillac-based chassis. One of two identical Boeing VC-25 aircraft, which are extensively modified versions of Boeing 747-200B airliners, serve as long distance travel for the president, and are referred to as Air Force One while the president is on board. The president also uses a United States Marine Corps helicopter, designated Marine One when the president is aboard.
The United States Secret Service is charged with protecting the sitting president and his family. As part of their protection, presidents, first ladies, their children and other immediate family members, and other prominent persons and locations are assigned Secret Service codenames. The use of such names was originally for security purposes and dates to a time when sensitive electronic communications were not routinely encrypted; today, the names simply serve for purposes of brevity, clarity and tradition.