Dude, you are not getting it. Those are access rules for *Gs
in the UA, US and CO mileage programs.
The alliance-wide rule is as follows:
http://www.staralliance.com/en/benef...access-policy/
Star Alliance Gold Customers Travelling in Any Class: Customers have access to any Star Alliance member carriers' owned lounges with the Star Alliance Gold logo at the entrance.
* Customer must present proof of Star Alliance Gold level status via a valid frequent flyer program Star Alliance Gold level card or other valid indication of Star Alliance Gold level status
* Customer must also present a boarding pass for travel on a Star Alliance flight departing from the local airport
* Customer is entitled to one guest
* Continental, United and US Airways Star Alliance Gold customers may only access the Red Carpet Clubs, US Airways Clubs and Presidents Clubs within the U.S. when travelling in conjunction with a Star Alliance international flight.