Welcome to the U.S. Embassy in Tokyo. This site contains information on U.S. policy, public affairs, visas and consular services.
http://usembassy.state.gov/tokyo/wwwhvisa-7128w.html The waiver program has been extended to include nationals of the following countries: Andorra, Australia, Austria, Belgium , Brunei, Denmark, Finland, France, Germany, Iceland, Ireland, Italy, Japan, Liechtenstein, Luxembourg, Monaco, the Netherlands, New Zealand, Norway, Portugal, San Marino, Singapore, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.
Citizens of Korea may not use the waiver, and must, therefore, obtain visas