Diversion from SID/STAR questions

[Spir4]

Originally Posted by 70 Mustang

I understand that radar contact puts the responsibility onto the shoulders of ATC and you're now following a new clearance. Of course with sensible situational awareness on your part, since ATC can make mistakes.

Enroute or before departure, a good scan of the other SIDs and STARs will give you an overview of the area, thus increasing your SA.

Fourth question: if ATC gives a new clearance, and does not restate the previous restrictions, they no longer apply.

Thanks!