There isn't [a need for CCW in order to check firearms as baggage]. The chief broke more than one law.
He broke the federal law that requires all firearms to be unloaded and declared, before being submitted for shipment in checked baggage.
He also broke the Michigan state law that requires handguns to be registered. (I think that law is still on the books). Again, this is not a registration of a person for carrying a concealead weapon, this is registration of the weapon to an owner, without the "right" to carry concealed. I'm not sure what triggers the obligation to register handguns to the Michigan authorities. Maybe Dan from MIchigan can summarize those requirements.