According to UCI's rule 1.2.019 states, "No license holder may participate in an event that has not been included on a national, continental or world calendar or that has not been recognized by a national federation, a continental confederation or the UCI". The section goes on to say that, "Breaches of articles 1.2.019 or 1.2.020 shall render the license holder liable to one month's suspension and a fine of 50 to 100 Swiss francs."
So any member of a UCI Trade Team is not able to compete in any non USA Cycling sanctioned event (Whiskey 50, Teva Mountain Games, etc..). Many riders on a UCI Trade Team race non USAC sectioned events for their large prize purses, large exposure and for tuning fitness.
This rule has been loosely enforced by USA Cycling in past seasons. Georgia Gould participated in the Teva Mountain Games while she was training for the London 2012 Olympic Games. Along with Jeremy Horgan-Kobelski, Gould received a letter from USA Cycling officials stating that she was in breach of rule 1.2.019 and that she was being fined 50 Swiss Francs (the lowest fine possible). The letter went on to say that neither would be suspended since it was their first offense. Even though Gould had participated in the Teva Mountain Games every year.
About a month ago factory UCI Trade Teams started getting letters saying that USA Cycling would be enforcing rule 1.02.019 for the 2013 season. Rule 1.2.019 also states that, "A national federation may grant special exception for races or particular events run in its own country". So, USAC has the ability to allow any rider to participate in an event not sanctioned by USAC without the penalty of being fined or suspended. From what we have discovered USAC is the only governing body that chooses to enforce this UCI rule.
It seems USA Cycling is pointing the finger and the UCI, and the UCI is pointing the finger back at USA Cycling. It is in USAC's favor to enforce the rule, because it is a way to leverage promoters to use USAC as the sanctioning body of their event. USAC has the argument that they offer a better product and anit-doping testing, but according to Barry Wicks, "if you ask the right questions, those arguments are invalid". When big names register for an event, a promoter will use that to advertise their event more. It doesn't just hurt the promoters, but the athletes as well. Athletes who are trying to make ends meet and promote their name are being hindered by USA Cycling, a governing body that should be helping the sport grow.
EDIT: We just want to clarify... We messed up, Rouge Roubaix is a USAC sanctioned event this year. Now there is no excuse for you to not go!