Documents: National Code of Practice for the Control of Work-related Exposure to Hepatitis and HIV (Blood-borne) Viruses [NOHSC:2010(2003)] (pdf, 169.13 KB) LAST UPDATED: 4 Oct 2024 The purpose of this code is to minimise the risk of infection resulting from work-related exposure to Hepatitis B virus (HBV), Hepatitis C virus (HCV) and Human Immunodeficiency Virus (HIV).