Originally Posted by
troyb
Question:
Does the FAA (or some other govt. body) set the rule for 1 + 1 bags (1 carryon + 1 personal) or is this the airline?
Both.
The FAA requires that the airline have a policy and that they follow it. The airline gets to decide what that policy is. But once it is written down and approved by the FAA the airline is expected to actually follow it.