Visa Waiver Program requirements are:
- The passport must have a machine-readable zone on the biographic page.
- The passport must be an electronic passport with a digital chip containing biometric information about the passport owner.
EXCEPTION: Effective July 1, 2009, Visa Waiver Program countries’ emergency or temporary passports must be electronic passports.
- Taiwan  passport holders must provide Passport Number and Personal Identification Number (PIN).
NOTE: For citizens of the United Kingdom, only passports indicating British Citizenship are eligible to be used for travel under the Visa Waiver Program. A passport indicating that the bearer is a British Subject, British Dependent Territories Citizen, British Overseas Citizen, British National (overseas) Citizen or British Protected Person does not qualify for travel without a visa.