the riverina institute, a collection of tafe institute campuses has its headquarters in wagga wagga and wagga is home to three campuses. the primary industries centre, at north wagga wagga is set on 250 hectares and runs courses on agriculture and horticulture. the national aerospace training centre of excellence, at raaf base wagga provides training support to the australian defence force aerospace traineeship program. the commercial contract with the adf is the largest technical training contract in australia. in addition wagga wagga is home to eight secondary schools and 22 primary schools.