I carefully went over the order Bill so helpfully linked and then the subsequent CDC guidances publishers March 23 and May 13. Open air shuttles are never addressed and there is some room for debate as to whether such conveyances are covered by the CDC order. For one, the March 23 and May 13 guidance only refers to "public transportation." Anyway, as I posted earlier, there will be at least one more regulation or explanatory guidance published between now and then. But if we wind up having to put a man on to get on the shuttle, it shouldn't be a big deal.

By the way, according to the CDC rules, military grade chemical/biological/radiological protective masks "do not fulfill the requirements of the order" mask-travel-guidance.html