Companion Volumes include information to help industry and trainers adapt to any new changes in a training package, as well as additional information about the impacts of regulation and licensing implications and workplace health and safety on their training. Companion volumes are available for download on our resources page. Companion Volumes include information to help industry and trainers adapt to any new changes in a training package, as well as additional information about the impacts of regulation and licensing implications and workplace health and safety on their training. Companion volumes are available for download on our resources page.