As per UEFA requirements, UEFA license holders need to complete 15 hours of CPD every 3 years.
Your 3 year cycle begins the calendar year after you complete your qualification. For example, If you complete a UEFA qualification on 01/06/2018, your 3 year cycle will begin on 01/01/2019 and you will have until 31/12/2021 to complete 15 hours of CPD to revalidate your license for the next 3 year cycle which will begin on 01/01/2022 through to 31/12/2024.
Please note: If you complete less than 15 hours of CPD and then your 3 year cycle ends, your hours will reset and they do not carry forward. You will then need to complete the full 15 hours to ensure your license is revalidated