A state funeral is a traditional event. Presidents, former Presidents, and Presidents-elect are entitled to state funerals. But the family decides whether or not to hold a state funeral. Former President Richard Nixon died in 1994, but did not have a state funeral.
A state funeral also has strict guidelines. For example, seating charts are prepared for guests at the funeral and processions must move at only 20 miles per hour.
Former President Lyndon B. Johnson, who died in 1973. was the last ex-President to have had a state funeral.
President Bush will speak at Reagan's funeral and many world leaders are expected to attend including former Russian leader Mikhail Gorbachev.
"It will be an international affair, similar to the passing of the Queen Mother in Britain," said retired Major General James T. Jackson of the Army. "It will be felt around the world, and the eyes of the world will be on Washington this week."
Reagan's body will then be flown back to California, with a sunset burial on the grounds of his presidential library in Simi Valley, northeast of Los Angeles.