"Jonathan Goodish" wrote in message
...

The pilot is complying with 91.130 if he's talking to Center.


Negative. FAR 91.130 requires the pilot to establish communications with
approach control.



I don't see where the FARs nor the AIM specifies that "ATC" is defined as
the
Class C ATC facility.


You'll find it in FAR 91.130(c)(1).