If you are a US business, entity or person and want to have a domain name that represent that, you can get a .us domain name to use for your business presence.
To satisfy the American presence requirements of the .US registry, you need to provide the following information
A description of the domain's application purpose:
A description of the domain's nexus category:
You need to provide a the domain owner's country of citizenship.
Value must be a valid two-letter country code. Please use the ISO 3166 Country Code. Common codes include: