Creating a Unique Student Identifier (USI) will only take a few minutes and it is free. You only need to create a USI once and it will stay with you for life. After you create your USI, you then need to give it to each training organisation you train with when you enrol.
To create a USI, go to https://www.usi.gov.au/students/create-your-usiand follow the steps. If you are interested in learning more about the USI, visit https://www.usi.gov.au/students.You can download the USI Fact Sheet for more information.