Formal qualifications are not mandatory as you can use your career knowledge to apply for your upgrade. So you can apply for a higher level of membership by completing the upgrade experience assessment online. You can choose the level which is the right fit for you.
What is an experience assessment?
The experience assessment is an online application which is peer assessed. To apply for a membership upgrade, you will need to provide evidence of effective professional progression, plus confirmation of advancement on the Professional Operators Development (POD) framework.