# § 1432. Restrictions
Nothing in this chapter shall be construed to constitute authorization hereunder for—
**(a)** the use of the cost-plus-a-percentage-of-cost system of contracting;
**(b)** any contract in violation of existing law relating to limitation of profits;
**(c)** the negotiation of purchases of or contracts for property or services required by law to be procured by formal advertising and competitive bidding;
**(d)** the waiver of any bid, payment, performance, or other bond required by law;
**1** the amendment of a contract negotiated under section 2304(a)(15) [^1] of title 10 or under section 252(c)(13) [^1] of title 41, to increase the contract price to an amount higher than the lowest rejected bid of any responsible bidder; or
See References in Text note below.
**(f)** the formalization of an informal commitment, unless it is found that at the time the commitment was made it was impracticable to use normal procurement procedures.
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**Source Credit**: (Pub. L. 85–804, § 2, Aug. 28, 1958, 72 Stat. 972.)
## Editorial Notes
### References in Text
, referred to in subd. (e), was amended generally by and, as so amended, did not contain a subsec. (a)(15). Section 2304 was repealed by , §§ 1801(d), 1881(a), , , 4293, effective , with additional provisions for delayed implementation and applicability of existing law.
, referred to in subd. (e), was renumbered section 252(c)(14) of former Title 41, Public Contracts, by , , . Subsequently, amended section 252 of former Title 41 by striking out subsec. (c), redesignating subsec. (e) as (c)(1), and adding subsec. (c)(2).
## Statutory Notes and Related Subsidiaries
### Nonapplicability of National Emergencies Act
The provisions of the National Emergencies Act [see Short Title note set out under ] shall not apply to the powers and authorities conferred by this section and actions taken hereunder, see .