Contact
USA Travel Atlas has no public contact address yet. It will get one, with a contact form, when the site moves to its own domain; until then, the form would have had to send your message through another site's mail service, and this page would have had to describe an address that does not exist.
What stands in for it meanwhile is the date on every guide. Each figure was checked against the body that publishes it on the day the guide shows, and the source is named in the text, so a price or a rule that has changed since can be checked at that source directly.