Originally Posted by
anabolism
Does rule (l) mean that only one of the listed transcons can be included, or only one per combination? E.g., would SYD-PER-DRW-SYD per permitted?

I called AA RTW and an agent confirmed that each line can be flown only once, but multiple lines are permitted. Agent confirmed I can fly a triangular route such as SYD-PER-DRW-SYD.