a license (issued by the Commission or its predecessor agency under the Atomic Energy Act of 1954 [
42 U.S.C. 2011 et seq.] or by a State as permitted under section 274 of such Act [
42 U.S.C. 2021]) for the production at such site of any uranium or thorium product derived from ores is in effect on
January 1, 1978, or is issued or renewed after such date; and