How to opt out of UCSA fee?

Excuse me, could you please clarify how one can opt out of the UCSA fee? I've been looking into this and it seems like there are some specific steps one needs to follow. Could you walk me through the process? Are there any forms that need to be filled out or deadlines that I should be aware of? Additionally, is there a specific reason why someone might want to opt out of this fee, or is it purely a matter of personal preference? I'd appreciate any information you could provide on this topic.