(a)
In general— The head of each executive agency shall, except as provided in subsection (b), ensure that each contract entered into by the executive agency on or after the date of enactment of this Act includes requirements that the contractor shall—
(1)
certify that, during the 5-year period immediately preceding the date on which the contract is entered into, the contractor did not initiate, carry out, or enforce any system of quotas, benchmarks, or goals in regard to employment practices that encourage or require any discrimination on the basis of race; and
(2)
not, during the performance of the contract, initiate, carry out, or enforce any system of quotas, benchmarks, or goals in regard to employment practices which encourage or require any discrimination on the basis of race.
(b)
Exception for lookback requirement— Notwithstanding subsection (a), the Secretary may exempt the head of an executive agency from the requirement to include the certification described in subsection (a)(1) in a specific contract, subcontract, or purchase order if the Secretary determines that special circumstances in the national interest so require.