S. 974 directs the U.S. Secretary of State to negotiate with the Taipei Economic and Cultural Representative Office to change its name to the "Taiwan Representative Office." This act reflects the policy of providing Taiwan with diplomatic treatment similar to that of other...
Simple Explanation
The U.S. wants to ask a special office that helps Taiwan in America to change its name to something that sounds more like it represents Taiwan like other countries do, but this won't change how America and Taiwan officially talk to each other. If the name changes, all the old documents with the old name will still work as if they have the new name.