The language is a little goofy because they are talking about concealed carry and referring to it a transporting. I don't know of anything preventing you from transporting an unloaded encased handgun on a private commercial bus. That would be unloaded and encased. A loaded magazine or speed loader can be in the case with the handgun. The case could be a fanny pack such as an Uncle Mikes Sidekick, purse, European Man's bag, brief case, backpack, or something else like that. I transported like in an Uncle Mikes fanny pack for over 8 years. It is sometimes called "6 seconds to safety". I quit now that I can carry with my Illinois CHL.