Please login at the top-right of the page. If you are a student participating you should sign in with a team login (ex: ozclo123) from your teacher.

    Available courses

    Teams access the Team Questionnaire and the Online Competition here. If you are a team, please make sure you are logged in with your team login (ozclo followed by a number).

    This is the 2022 online exam, now available as a practice quiz!

    This is the site for all teachers and supervisors on the day of the OzCLO 2023 state competition. You must be registered as an OzCLO teacher to access this site (visit for more details).

    Here you will find all the information you need to run the competition on the day.