From cyclingnews.com:
"While reports initially stated that should Beltrán's B sample come back positive, the team would be forced to withdraw from the race, the German television station ZDF received confirmation from the Amaury Sport Organistion (ASO) that the team could remain in the race.
"The station also reported that the team will escape the 100,000 euro penalty which was part of the ASO's anti-doping contract signed by all teams prior to the Tour, because they removed Beltrán immediately after the positive A-sample.
While I'm not nearly as critical of the testing and the French labs, this bothers me. While I realize false positives are rare, they can happen. But if a team has a rider with a positive A, it's quite clear that they do not have time to wait around for the B sample to be tested.