; (3) by striking an alien each place it appears and inserting a noncitizen ; (4) by striking An alien each place it appears and inserting A noncitizen ; (5) by striking alien each place it appears and inserting noncitizen ; (6) by striking aliens each place it appears and inserting noncitizens ; and (7) by striking alien's each place it appears and inserting noncitizen's . 1208. Government contracting and acquisition of real property interest (a) Exemption from Government contracting and hiring rules (1) In general A determination by a Federal agency to use a procurement competition exemption under section 3304(a) of title 41, United States Code, or to use the authority granted in paragraph (2), for the purpose of implementing this title and the amendments made by this title is not subject to challenge by protest to the Government Accountability Office under chapter 35 of title 31, United States Code, or to the Court of Federal Claims, under section 1491 of title 28, United States Code. An agency shall immediately advise Congress of the exercise of the authority granted under this paragraph. (2) Government contracting exemption The competition requirement under section 3306 of title 41, United States Code, may be waived or modified by a Federal agency for any procurement conducted to implement this title or the amendments made by this title if the senior procurement executive for the agency conducting the procurement— (A) determines that the waiver or modification is necessary