International domain name restrictions, various restrictions for different subdomains; .com.pt is unlimited.

This country is a member of the European Union. A trademark may be registered exclusively in this country or through the European Community Trademark (CTM) system. Member countries providing protection under the European Community Trademark include: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the United Kingdom. Trademarks are assigned through the National Institute of Industrial Property, Secretary of State for Justice and Judicial Modernization, Ministry of Justice. Portugal is a member of the Madrid Protocol. A trademark is valid for 10 years and may be renewed for further periods of 10 years each.