124 STAT. 3767 PUBLIC LAW 111–350—JAN. 4, 2011 (3) in an exceptional case when the head of the procuring activity, without delegation, determines that the requirements of this chapter may be waived and justifies in writing the reasons for the determination. (b) MODIFICATIONS OF CONTRACTS AND SUBCONTRACTS FOR COMMERCIAL ITEMS.—In the case of a modification of a contract or subcontract for a commercial item that is not covered by the exception to the submission of certified cost or pricing data in paragraph (1) or (2) of subsection (a), submission of certified cost or pricing data shall not be required under section 3502 of this title if— (1) the contract or subcontract being modified is a contract or subcontract for which submission of certified cost or pricing data may not be required by reason of paragraph (1) or (2) of subsection (a); and (2) the modification would not change the contract or sub- contract from a contract or subcontract for the acquisition of a commercial item to a contract or subcontract for the acquisi- tion of an item other than a commercial item. § 3504. Cost or pricing data on below-threshold contracts (a) AUTHORITY TO REQUIRE SUBMISSION.—Subject to subsection (b), when certified cost or pricing data are not required to be submitted by section 3502 of this title for a contract, subcontract, or modification of a contract or subcontract, the data may neverthe- less be required to be submitted by the head of the procuring activity, but only if the head of the procuring activity determines that the data are necessary for the evaluation by the agency of the reasonableness of the price of the contract, subcontract, or modification of a contract or subcontract. In any case in which the head of the procuring activity requires the data to be submitted under this section, the head of the procuring activity shall justify in writing the reason for the requirement. (b) EXCEPTION.—The head of the procuring activity may not require certified cost or pricing data to be submitted under this section for any contract or subcontract, or modification of a contract or subcontract, covered by the exceptions in section 3503(a)(1) or (2) of this title. (c) DELEGATION OF AUTHORITY PROHIBITED.—The head of a pro- curing activity may not delegate the functions under this section. § 3505. Submission of other information (a) AUTHORITY TO REQUIRE SUBMISSION.—When certified cost or pricing data are not required to be submitted under this chapter for a contract, subcontract, or modification of a contract or sub- contract, the contracting officer shall require submission of data other than certified cost or pricing data to the extent necessary to determine the reasonableness of the price of the contract, sub- contract, or modification of the contract or subcontract. Except in the case of a contract or subcontract covered by the exceptions in section 3503(a)(1) of this title, the contracting officer shall require that the data submitted include, at a minimum, appropriate information on the prices at which the same item or similar items have previously been sold that is adequate for evaluating the reasonableness of the price for the procurement. (b) LIMITATIONS ON AUTHORITY.—The Federal Acquisition Regula- tion shall include the following provisions regarding the types of
