Longer answer. The two paragraphs have different triggers.



PWA 23.L.8



A rerouted regular pilot who is not scheduled to release within four hours of the scheduled release of the last duty period of their original rotation (the “time limitation”) will receive single pay and credit (and/or the applicable pay, no credit for a GS, GSWC, SS, PBSPR, IA, or IAWC) for the rotation as flown, plus single pay no credit for any duty period(s) that extends beyond such time limitation.



PWA 23.L.9



9. A rerouted reserve pilot who is not scheduled to release within four hours of the scheduled release of the last duty period of their original rotation will receive single pay and credit (or the applicable pay, no credit for a GS, GSWC, IA, or IAWC) for the rotation as flown, plus single pay no credit (in addition to any other form of pay for the bid period) for any duty period that extends beyond such four hour limitation and into either:

a. an X-day, or

b. a regular line day-off.



23.L.9 is not triggered until a duty period infringes on an X day. It does not matter if a break in duty infringes on an X day.



If the rerouted duty period releases >4 hours late on a LC day, no L9 pay is due for that duty period because an X day was not infringed by that duty period.



In SRH example 6, the duty period ends at 2059 since the DH was removed (missed DH). Therefore, for a REG pilot, the trigger is met because their regular line days-off started on this calendar day.



If you have the same rotation for RES, their day is a LC day until 2359. The removal of the DH triggers RRPY calculations but no segment was flown. No L4 pay for the duty period. Since the duty period was on a LC day, the trigger for L9 is not met until the next duty period. If say a segment was added, and that release was past 2359 adjusted for base time, then that duty period would trigger L9 pay.