Yes, this Fare does have Booking Class exceptions:
...
Interesting. How do we read that table? From top to bottom? Because,
Code:
BA I REQUIRED WHN OFFERED WITHIN USA
BA A PERMITTED WITHIN USA
BA Y REQUIRED WITHIN USA
seems contradictory if we try to apply all those rules at the same time. So I assume once we find one rule that is okay, that's the rule that applies?