; (bb) establish or maintain conserving cover crops or conserving use acreages; or (cc) are required for livestock operations; and (II) for, with respect to a crop year, a period of at least— (aa) 1,000 hours; or (bb) 50 percent of the total hours that would be required to conduct a farming operation comparable in size to the producer’s share in the farming operation, as determined by the Corporation. (ii) Active personal management The term active personal management means management activities personally performed on a farming operation— (I) by a person with a direct or indirect ownership interest in that farming operation; (II) on a regular continuous, and substantial basis; and (III) for, with respect to a crop year, a period of at least— (aa) 500 hours