; and (iii) destroy any defective or unusable item with any unit or agency insignia in a manner set forth by the Secretary and maintain records of such destruction that includes the destruction date, description of item destroyed, quantity destroyed, and method of destruction. (4) Applicability to contracts and subcontracts (A) In general Except as provided under subsection (b), the Secretary of Homeland Security may not enter into a contract for procurement unless the contract, and each subcontract under the contract, requires that the criteria under subparagraphs (A) through (C) of paragraph (3) are met. (B) Consistency with international agreements This section shall be applied, after consultation with the Office of the United States Trade Representative, in a manner consistent with United States obligations under international agreements. (b) Exceptions (1) Availability exception The requirement under subsection (a) does not apply to the extent that the Secretary of Homeland Security determines that satisfactory quality and sufficient quantity of any item described in subsection (a)(2) cannot be procured as and when needed at United States market prices. (2) Exception for certain procurements The requirement under subsection (a) does not apply to the following procurements: (A) Procurements by vessels in foreign waters. (B) Procurements in response to a major disaster declared by the President under section 401 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170 ). (3) Notification requirement Not later than 7 days after awarding a contract using an exception under subsection (b), the Secretary shall post a notification that the exception has been applied on the Internet site maintained by the General Services Administration known as 23FedBizOps.gov (or any successor site). (c) Maximum uniform allowance for certain personnel (1) In general Notwithstanding the maximum uniform allowance set forth in section 591.103 of title 5, Code of Federal Regulations, the maximum uniform