US Citizens Traveling to Japan
ENTRY/EXIT REQUIREMENTS: You must have a valid passport and an onward/return ticket for tourist/business "visa free" stays of up to 90 days. Your passports must be valid for the entire time you are staying in Japan. U.S. citizens cannot work on a 90-day "visa free" entry. As a general rule, "visa free" entry status may not be changed to another visa status without departing and then re-entering Japan with the appropriate visa, such as a spouse, work, or study visa.
For more information about the Japanese visa waiver program for tourists, Japan's rules on work visas, special visas for taking depositions, and other visa issues, you should consult the Consular Section of the Embassy of Japan at 2520 Massachusetts Avenue NW, Washington, DC 20008, tel. (202) 238-6800, or the nearest Japanese consulate. Please visit the Japanese Embassy's website for location details. The U.S. Embassy and U.S. consulates in Japan cannot assist in obtaining visas for Japan.
All foreign nationals entering Japan, with the exception of certain categories listed below, are required to provide fingerprint scans and to be photographed at the port of entry. This requirement does not replace any existing visa or passport requirements. Foreign nationals exempt from this requirement include special permanent residents, persons under 16 years of age, holders of diplomatic or official visas, and persons invited by the head of a national administrative organization. U.S. travelers on official business must have a diplomatic or official visa specifying the nature of travel as "As Diplomat," "As Official," or "In Transit" to be exempt from biometric collection. All other visa holders, including those with diplomatic and official visas stating "As Temporary Visitor," are subject to this requirement. Status of Forces Agreement (SOFA) personnel are exempt from biometrics entry requirements under SOFA Article IX.2.
If you are a U.S. citizen entering or transiting Japan, you should ensure that your passport and visa are up-to-date before you leave the United States. Occasionally, airlines mistakenly board U.S. citizens coming to Japan even though their passports have already expired. The U.S. Embassy and U.S. consulates cannot "vouch for" you without a valid passport, and passport services are not available at the airport. In some prior instances, travelers have been returned immediately to the United States, while in other cases, they have been issued 24-hour "shore passes" and required to return the next day to Japanese Immigration for lengthy processing.
For more details visit:
http://www.travel.state.gov/travel/cis_pa_tw/cis/cis_1148.html