A Unique Student Identifier (USI) number is a unique number that is allocated to students studying nationally recognised Vocational Educational Training (VET) in Australia. This is a government initiative that enables you to access all of your training records and results from one location allowing you to provide proof of qualification to any potential employer. USI’s are mandatory for anyone wanting to complete nationally recognised training.If you forgot or lost your USI number please call Student Support 1300 146 699 or visit https://www.usi.gov.au/contact-us/students