For 2023 Riders will require a license to race if you want to race more than 3 events.
Riders without a license can still register for any island cup event but they will be subject to an additional $10 charge to help cover insurance costs. This will give the rider accident insurance for the day of the race. You are only able to do this for up to 3 events for the entire year. This includes other cycling BC races like Cross on the Rock. So if you want to race more than 3 times in 2023 you need to purchase a Cycling BC Race License or a UCI License.
More info on Cycling BC Licenses can be found here