Pub. L. 89-37, tit. III, sec. 302

Sec. 302. The distribution of the assignments and contracts for construction of warships and escort vessels for which appropriations are authorized by this Act and hereafter shall be in accordance with the requirement of the Act of March 27, 1934 (48 Stat. 503), that the first and each succeeding alternate vessel shall be constructed in the Government Navy yards: Provided, That, if inconsistent with the public interests in any year to have a vessel or vessels constructed as required above, the President may have such vessel or vessels built in a Government or private yard as he may direct.