The United States Senior Men's Amateur Golf Championship is a national tournament for amateur golf competitors at least 55 years of age. It is operated by the United States Golf Association (USGA). The tournament starts with 36 holes of stroke play, with the top 64 competitors advancing to the match play portion of the tournament. Golfers must have a USGA handicap index of 7.4 or lower to enter. Senior Amateur contestants have been permitted to ride in carts since 1969.