It's not applicable to aeroplanes with less than 30 seats, but is applicable to those originally constructed / certificated with more than 30 seats; such as airliner derived business jets.
So, for instance , it does apply to Bombardier Challenger 850 , which is derived from CRJ200 airliner but not the Challenger 600/601/604/605/650 series.
However, there is nothing to stop the operator camo insisting CDCCL protocols are used when their aeroplanes are maintained, this would be a matter for your maintenance planning department, and likewise some manufacturers are now including CDCCL warnings in relevant sections of maintenance manual.
Go and have a chat with your company quality manager, as IIRC he/she has to countersign your work experience for initial application.
Ttfn