Section 25.1002 - Use of foreign currency(a) Unless an international agreement or the WTO GPA (see 25.408(a)(4)) requires a specific currency, contracting officers must determine whether solicitations for contracts to be entered into and performed outside the United States will require submission of offers in U.S. currency or a specified foreign currency. In unusual circumstances, the contracting officer may permit submission of offers in other than a specified currency.(b) To ensure a fair evaluation of offers, solicitations generally should require all offers to be priced in the same currency. However, if the solicitation permits submission of offers in other than a specified currency, the contracting officer must convert the offered prices to U.S. currency for evaluation purposes. The contracting officer must use the current market exchange rate from a commonly used source in effect as follows:(1) For acquisitions conducted using sealed bidding procedures, on the date of bid opening.(2) For acquisitions conducted using negotiation procedures-(i) On the date specified for receipt of offers, if award is based on initial offers; otherwise(ii) On the date specified for receipt of final proposal revisions.(c) If a contract is priced in foreign currency, the agency must ensure that adequate funds are available to cover currency fluctuations to avoid a violation of the Anti-Deficiency Act (31 U.S.C. 1341 , 1342 , 1511-1519 ).64 FR 72419, Dec. 27, 1999, as amended at 69 FR 1055 , Jan. 7, 2004; 69 FR 77876 , Dec. 28, 2004