Title 31 › SUBTITLE IV — MONEY › CHAPTER 51 — COINS AND CURRENCY › SUBCHAPTER V — MISCELLANEOUS › § 5151
Requires using the New York market buying rate to change foreign money into U.S. dollars for import duties. "Buying rate" means the New York market rate for bank wire transfers in that foreign currency. If banks in New York are closed on the export day, use the noon rate from the last business day. The Treasury Secretary must estimate the pure‑metal value of a country's standard coin and publish those dollar values on January 1, April 1, July 1, and October 1. Normally conversions use the published quarterly coin values for the quarter the goods were exported. If no quarterly value exists or it differs by 5% or more from the noon buying rate on the export day, use either that noon buying rate or a rate equal to the first buying rate the Federal Reserve Bank of New York certifies that quarter (only if the noon rate is within 5% of that first certified rate). The New York Fed decides and certifies the buying rate based on recent transactions and quotes, or, if none exist, from actual exchange transactions or bills of exchange.
Full Legal Text
Money and Finance, Source: USLM XML via OLRC
Legislative History
Reference
Citation
31 U.S.C. § 5151
Title 31, Money and Finance
Last Updated
Aug 21, 2026
Release point: 119-102