This document amends the U.S. Customs and Border Protection (CBP) regulations to reflect an extension of import restrictions on certain archaeological and ethnological material of the Plurinational State of Bolivia (Bolivia). The restrictions, which were originally imposed by Treasury Decision (T.D.) 01-86 and last extended by CBP Decision (CBP Dec.) 16-24, are due to expire on December 4, 2021. The Acting Assistant Secretary for Educational and Cultural Affairs, United States Department of State, has determined that factors continue to warrant the imposition of import restrictions and no cause for suspension exists. Pursuant to the exchange of diplomatic notes to extend the agreement, the import restrictions will remain in effect for an additional five years, and the CBP regulations are being amended to reflect this further extension until December 4, 2026. T.D. 01-86 contains the Designated List of archaeological and ethnological material from Bolivia to which the restrictions apply.