The UCAT (University Clinical Aptitude Test) is part of the admission process for Medicine and Dentistry.
The UCAT test score is only valid in the year that you apply, that means for that application cycle only.
Further information
University Clinical Aptitude Test for Australia and New Zealand (UCAT ANZ)
UCAT ANZ Frequently Asked Questions
UCAT is required for all domestic HSFY students considering applying for Medicine and Dentistry. UCAT is not required for any international students in 2023. A UCAT score is not required for applications to Medicine through the Alternative category.
UCAT is administered by Pearson, not by the University of Otago. Students can enrol at: https://www.ucat.edu.au Students need to contact UCAT directly if they are having issues with applying, etc.