What are the syntax rules for .travel domain names?
Domain names must:
* be at least 3 characters and no more than 63 characters long;
* be a name on the second level (e.g. AAA.travel where AAA designates the second level) unless approval has been obtained for name registration at the third level (e.g.BBB.aaa.travel, where BBB designates the third level);
* not contain a hyphen on the 3rd and 4th position (this usage is reserved for International Domain Name implementation);
* contain only letters (a-z), numbers (0-9) and hyphens or a combination of these; and
* start and end with an alphanumeric character, not a hyphen
