In order to qualify for a CCDO card at any level, you must also pass the appropriate CITB Health, Safety and Environment test: Operative, Demolition Specialist, Demolition Supervisor and Manager and Professionals. The required level of test for each CCDO card is listed on the relevant course page. Our advisors can also offer advice on which test you need. The Health, Safety and Environment Test is 50 questions that cover 5 core knowledge areas. More information on the HS&E test, where it can be administered and how to book is available on the CITB’s website.