The Electronic Visa Update System is an automated system that requires the following:
If you are traveling from Taiwan, Hong Kong and Macau and have a People’s Republic of China passport as well as a 10-year visitor visa you should enroll in the EVUS. Travelers who reside in these countries but have other travel documents such as the Hong Kong SAR, Macau SAR and Taiwan passport may continue to travel to U.S. as they do.
If your passport has expired, you will be required to apply for a new EVUS Visa update before entering the United States. We recommend that you enroll for EVUS at least 72-hours before your planned trip, to avoid any possible delays.