§ 3903. Measures for the importation and exportation of rough diamonds
(a)
Prohibition
The President shall prohibit the importation into, or exportation from, the United States of any rough diamond, from whatever source, that has not been controlled through the Kimberley Process Certification Scheme.
(b)
Waiver
The President may waive the requirements set forth in subsection (a) with respect to a particular country for periods of not more than 1 year each, if, with respect to each such waiver—