According to a brief update at l'equipe.fr, the ASO has decided to exclude Boonen from the upcoming Tour de France as a consequence of his cocaine positive.
Here is Prudhomme's statement: "For us, Tom Boonen can not be at the départ of the Tour now that the information concerning him is confirmed. Tom Boonen is a grand champion, but a grand champion must also be an example... There is a threat to the integrity of the Tour and to the group of the teams in the Tour."