commonwealth of australia migration regulations 1994 minimum salary levels and occupations for the business long stay visa 1 20b 20g 2 20ga a i amanda vanstone minister immigration multicultural affairs acting under 17 subregulation subparagraph revoke instrument number immi 06 028 signed on 24 april 2006 specifying purposes regulation specify gross annual aud 41 850 excluding those items listed in schedule to this calculated 38 hour week as level definition b 57 300