Is the CHAMP Pro Portable Charger CCC certified?
No. CHAMP Pro isn't CCC certified. CCC (China Compulsory Certification, also called the 3C mark) is China's required safety mark, and it's only needed on products sold in China. For now, only Nimble products sold at Apple in China carry it, so most Nimble products don't.
This matters if you're flying within China: power banks without a CCC mark aren't allowed on domestic flights there.
It isn't a TSA requirement. TSA doesn't certify power banks or check for CCC. For U.S. flights, keep CHAMP Pro in your carry-on, never in checked bags. At about 74Wh, it's under the 100Wh limit, so no airline approval is needed.