meet the requirements as follows: (1) Health-readiness regions There shall be not more than three health-readiness regions established in the continental United States. (2) Leader Each region under paragraph (1) shall be led by a commander or director who is a member of the Armed Forces serving in a grade not higher than major general or rear admiral and who shall be— (A) selected by the Director from among members of the Armed Forces recommended by the military departments for service in such position