Currency.
CFR · 2024-01-01 · US · Title 14
(a) (b) (1) The fares and charges stated in currencies of countries other than the United States are substantially equivalent in value to the respective fares and charges stated in cents or dollars of the United States. (2) Each record containing fares and charges shall clearly indicate the respective currencies in which the fares and charges thereon are stated, and (3) The fares and charges stated in cents or dollars of the United States are published separately from those stated in currencies of other countries. This shall be done in a systematic manner and the fares and charges in the respective currencies shall be published in separate records.
official document · source cfr-2024 · id 14:§ 221.50