I remember seeing a CAA RT guide that talked about the cancelling of climb restrictions. Essentially, if cleared on a SID with climb restrictions, clearence to then climb further cancels the SID climb restrictions unless the restrictions are specifically re-iterated in the clearence.
I presume the same applies to descent?
For example, cleared on a BNN1B and cleared to FL200 (so level by Tobid). Now if I get put on a heading and get "descend to FL150, level abeam Sopit" do I still need to get down to FL200 abeam Tobid? I would think not, as the heading has cancelled the STAR, and with it the attendant STAR restrictions. And while still on a heading, am I right in thinking the speed control is cancelled unless "standard speed" is specifically ordered?
Any ATCO's care to comment?!