The State Department must review its rules for how the U.S. deals with Taiwan at least every 5 years and resend them to agencies.
Within 90 days of each review, the Secretary of State must send an updated report to Congress explaining any changes and how the rules meet U.S. goals.
The law covers not just the current memo but any future documents that guide U.S.-Taiwan dealings, so updates continue even if the paperwork changes.
This is meant to keep policy clear and consistent, with limited day-to-day effect for most people but importance for U.S.-China-Taiwan relations.