Be advised :
TC Operations, when issuing a Non-Standard Flight, evaluate the request ONLY on the impact said flight may cause to other traffic.
It is noted on the NSF notification that dispensation from ANO requirements is NOT to be inferred from the approval.
ATC is NOT responsible for checking/confirming/conferring dispensation from rules and regs as notified in the ANO.
A pilot MUST take care of this him/herself. Should that pilot request activation/approval of the NSF, at the levels notified in that document then they are directly implying that they have already considered and applied for exemptions as necessary.
ATC do NOT have sight of, and do not consider these exemptions, because it is NOT our responsibility.
ATC will therefore approve/deny the flight on traffic grounds alone.
Do NOT expect ATC to police your license.
In this specific instance, the banner tower confirmed with ATC that he could alight clear. That statement could not be challenged by us, therefore we had no grounds on which to refuse the clearance.
I expect to be able to notify TC controllers of further information on this subject shortly.
