§ 3727. Assignments of claims
(a)
In this section, “assignment” means—
(b)
An assignment may be made only after a claim is allowed, the amount of the claim is decided, and a warrant for payment of the claim has been issued. The assignment shall specify the warrant, must be made freely, and must be attested to by 2 witnesses. The person making the assignment shall acknowledge it before an official who may acknowledge a deed, and the official shall certify the assignment. The certificate shall state that the official completely explained the assignment when it was acknowledged. An assignment under this subsection is valid for any purpose.
(c)
Subsection (b) of this section does not apply to an assignment to a financing institution of money due or to become due under a contract providing for payments totaling at least $1,000 when—
(d)
During a war or national emergency proclaimed by the President or declared by law and ended by proclamation or law, a contract with the Department of Defense, the General Services Administration, the Department of Energy (when carrying out duties and powers formerly carried out by the Atomic Energy Commission), or other agency the President designates may provide, or may be changed without consideration to provide, that a future payment under the contract to an assignee is not subject to reduction or setoff. A payment subsequently due under the contract (even after the war or emergency is ended) shall be paid to the assignee without a reduction or setoff for liability of the assignor—
(2)
because of renegotiation, fine, penalty (except an amount that may be collected or withheld under, or because the assignor does not comply with, the contract), taxes, social security contributions, or withholding or failing to withhold taxes or social security contributions, arising from, or independent of, the contract.
(e)