The CPC CE requirement is 100 credits over the four-year CPC cycle. You must have at least 60 Class A credits and may claim up to 40 Class B activities. Any Class A credits earned over the required 60 are applied toward CPC Compliance. A CRNA who earned 100 Class A credits (it is not necessxary to change the category from A to B), would be CPC Compliant. CE credits are due every four years and do not rollover from one cycle to the next.