持葡國護照去關島洗唔洗簽證呀?

http://www.visitguam.org/airtravel/?pg=entry

The Visa Waiver Program permits nationals from designated countries to apply for admission to the United States for ninety days or less as nonimmigrant visitors for business or pleasure without first obtaining a U.S. nonimmigrant visa, must have a machine-readable passport, and arrive on a signatory carrier.
The following countries are eligible for the Visa Waiver Program: Andorra, Australia, Austria, Belgium, Brunei, Denmark, Finland, France, Germany, Iceland, Ireland, Italy, Japan, Liechtenstein, Luxembourg, Monaco, Netherlands, New Zealand, Norway, Portugal, San Marino, Singapore, Slovenia, Spain, Sweden, Switzerland, and United Kingdom

若你的護照中身份證明的一頁可供機����閱讀（最底處有二行有很多<<<<的條子），你就可以用葡國護照入關島境。

visa not required if your passport is a machine readable (MRP) and issued after 26 oct 2006.