tl;dr: In response to new FCC rules effective October 13 requiring online marketplaces to verify FCC IDs for RF transmitting equipment, eBay has restricted radio equipment listings but confirmed to ARRL that gear operating exclusively on amateur radio frequencies is exempt, since such equipment doesn't require FCC authorization. However, VHF/UHF radios capable of operating outside ham bands still require FCC certification to be sold. Sellers whose ham-only listings are mistakenly flagged can contact eBay for review.