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Rugby Union South Australia (RUSA) is the governing body for the sport of rugby union in the state of South Australia. It is a member of Rugby Australia and runs an amateur club competition in Adelaide consisting of men's teams in Premier grade, Premier reserves, Division 2 and Division 2 reserves; and junior teams grouped by age from under 7 to under 18. As of 2013, a women's competition has been included. The RUSA also selects representative teams each year to compete against other Australian states and territories.