On Mon, 31 Jan 2011 11:16:57 -0800 (PST), Bob
wrote:

CFRs require it for all people needing dock acess for thier job. But
since you dont sail your license you reall have no use for either a
TWIC or that master license (sutible for framing and display) Hang on
to that purdy license.

The latest CFRs actually go farther than that. They say that without
a TWIC card your Masters ticket or OUPV are no longer valid.