Olympic TT bikes

Is there some rule in the Olympics about displaying the brand-name of a bike only once on the frame? If you look carefully, instead of the downtube, toptube, headtube, and forks displaying the brand-name, each bike had only one showing (typically the downtube) and the others were all taped over.

Additionally, what was the deal with Karen Teurig (sp?) wearing a black and white skinsuit with no Swiss red cross or “CH” letters? Apparently it is an Olympic rule that the nation’s flag and letters are to be displayed on the skinsuit.

Yes it is. All other sponsorship must be removed (jersies and knicks).