"That means replacing and reducing the numbers of animals used in experiments wherever possible, and refining experimental techniques and general husbandry to minimise or eliminate suffering," Dr Williams said.
"A significant aspect of our activity throughout the year involved supporting efforts to have the Three Rs embodied into practices that use animals."
Dr Williams said the committee spent the last year reviewing eight codes of ethical conduct and making submissions on the Animal Welfare Amendment Bill and the Psychoactive Substances Bill.
Dr Williams said the committee also regularly met the Animal Ethics Committees (AECs) and were waiting for results from a research project which looked into how AECs assessed protocols.
AECs, whose membership must include three independent nominees from the New Zealand Veterinary Association, the Royal New Zealand SPCA and from local or regional councils, approved any research, testing, or teaching involving live animals in New Zealand.