42 U.S. Code § 5148 - Nonliability of Federal Government
The Federal Government shall not be liable for any claim based upon the exercise or performance of or the failure to exercise or perform a discretionary function or duty on the part of a Federal agency or an employee of the Federal Government in carrying out the provisions of this chapter.
This chapter, referred to in text, was in the original “this Act”, meaning Pub. L. 93–288, May 22, 1974, 88 Stat. 143. For complete classification of this Act to the Code, see Short Title note set out under section 5121 of this title and Tables.