“ The following-described criteria shall govern the award of the Medal— (1) Not more than twenty individuals shall be awarded the Medal in any one calendar year. (2) No individual shall be awarded the Medal unless, at the time such award is made, he: (A) is a citizen or other national of the United States; or (B) is an alien lawfully admitted to the United States for permanent residence who (i) has filed a petition for naturalization in the manner prescribed by Section 334 (b) of the Immigration and Nationality Act, and (ii) is not permanently ineligible to become a citizen of the United States. ”

“ Each appointive member of the Committee shall be appointed by the President from among appropriately qualified citizens of the United States. Except as otherwise provided in subsection (e) of this Section, each such member shall be so appointed for a term of three years or for the balance of the unexpired term of his predecessor, whichever is appropriate. Members may be reappointed to serve one additional term of three years. As nearly as practicable, the appointive members of the Committee shall comprise a cross section of the major fields of science and engineering. ”

“ The Committee shall receive, on behalf of the President, (1) the recommendations made by the National Academy of Sciences respecting the award of the Medal pursuant to the provisions of Section 2 (a) of the Act, and (2) such similar recommendations as may be made by any other nationally representative scientific or engineering organization or other qualified source. Each such recommendation shall include or be accompanied by such appropriate supporting material as the Committee may from time to time specify. ”