Following amendments to various acts and regulations by the Western Australian Parliament and Department of Health, a legislative framework and a code of practice were produced which provided the foundation for the HNP’s scope of practice. This scope of practice was subsequently approved by the Director of Nursing and Head of Liver Service at RPH. A key part of the legal framework is that the HNP must work within the approved clinical protocols that guide the HNP’s scope of practice in the designated area of the Liver Service.