Mr. B...,
Thank you for your inquiry. On behalf of my country, may you enjoy your visit and the beautiful Islands of Hawaii
If you are a foreign national and you are not eligible to register your sUAS in the United States there are two ways for you to operate. If you want to operate your UAS exclusively as model aircraft you must complete the steps in the web-based registration process and obtain a "recognition of ownership." This recognition of ownership is required by the Department of Transportation to operate a model aircraft in the U.S. Alternatively, if you want to operate your UAS as a non-model aircraft you must register your UAS in the country in which you are eligible to register and obtain operating authority from the Department of Transportation.
NOTE: The FAA's online registration website can only be accessed from a computer located in the U.S. or its territories or possessions.
For additional information please refer to the following link(s):
http://www.faa.gov/uas/faqs/#reg https://registermyuas.faa.gov/
More information on the small UAS rule is available on our website at
http://www.faa.gov/uas.
Regards,
FAA UAS Integration Office
UASHelp@faa.gov