You must have an Inclusive Support Plan (ISP) in place to be permitted reasonable adjustments in exams.
Therefore, you should consult the Inclusive Support Service in plenty of time for your ISP to be created, and be mindful that there are exam deadlines each semester for reasonable adjustments (see below). ISP adjustments once set up and listed in your ISP are in place for the duration of your course unless an expiry date is stated. There is no requirement for you to contact the Exams Office directly unless you have a query.