The provisions of sections
35 to
45 of this title shall not be construed to modify or amend Title III of the act entitled “An Act making appropriations for the Treasury and Post Office Departments for the fiscal year ending June 30, 1934, and for other purposes”, approved May 3, 1933 (commonly known as the Buy American Act) [
41 U.S.C.
10a et seq.], nor shall the provisions of sections
35 to
45 of this title be construed to modify or amend sections
3141–3144,
3146, and
3147 of title
40, nor the labor provisions of Title II of the National Industrial Recovery Act, approved June 16, 1933, as extended, or of section 7 of the Emergency Relief Appropriation Act, approved April 8, 1935; nor shall the provisions of sections
35 to
45 of this title be construed to modify or amend chapter 307 and section
4162 of title
18.