41 U.S.C. § 2309
Protection of constitutional rights of contractors
(a) Prohibition on Requiring Waiver of Rights.—
A contractor may not be required, as a condition for entering into a contract with the Federal Government, to waive a right under the Constitution for a purpose relating to the Chemical Weapons Convention Implementation Act of 1998 ( 22 U.S.C. 6701 et seq.) or the Chemical Weapons Convention (as defined in section 3 of that Act ( 22 U.S.C. 6701 )).
(b) Permissible Contract Clauses.—
Subsection (a) does not prohibit an executive agency from including in a contract a clause that requires the contractor to permit inspections to ensure that the contractor is performing the contract in accordance with the provisions of the contract.
( Pub. L. 111–350, § 3 , Jan. 4, 2011 , 124 Stat. 3738 .)