Australia - Legislation and guidelines for organ and tissue donation
Each of Australia's states and territories enacted legislation on tissue and organ procurement (mostly in the 1980s) which explicitly prohibit trade.
Links to each state's Act can be found at the federal Health Department's website on the following page:
None of them mention international trafficking or transplant tourism.
NSW: Human Tissue Act 1983
Vic: Human Tissue Act 1982; Human Tissue (Prescribed Institutions) Regulation 2006
Qld: Transplantation and Anatomy Act 1979
SA: Transplantation and Anatomy Act 1983
WA: Human Tissue and Transplant Act 1982
Tas: Human Tissue Act 1985
NT: Human Tissue Transplant Act 1995
ACT: Transplantation and Anatomy Act 1978