Peter Duniho wrote:

There are "taxiways" and there are "taxiways". What matters is how the
airport operator has defined the non-movement areas. You can easily see
that from the markings on the pavement, or of course you could ask the
controllers or other officials at the airport. Just because a person
might use the word "taxiway" to describe an area on the airport, that
doesn't mean it's subject to the regulation that was quoted.

The markings and signage are both consistent with it being a taxiway.

In this particular case, "taxiway H" does not appear to be charted on the
official chart, and of course without seeing the airport myself, I can't
comment on how it's labeled or marked. However, looking at the airport
diagram it certainly seems plausible that there's an area described as
"taxiway H" but which is really just part of the ramp.

Physically, it is "part of the ramp". But there are markings which draw the
distinction.

Regardless, there are examples of places where taxiways (that is, long
stretches of pavement on which aircraft are expected to taxi) are simply
not part of the movement area, and are not subject to the regulation that
was
quoted. Renton, WA is one such example (already cited in this thread).

Looking at the diagram for RNT, taxiways A and B appear similar in structure
to H at CDW. Are they marked at RNT in such a way as to make a distinction
between "the ramp" and "the taxiway"?

- Andrew