Michael wrote:
1) Why is there a 2000 MOCA out over the ocean?

Are there perhaps offshore installations of some sort?

Not that I'm aware of. The tallest thing I can think of is something
like Ambrose Tower (http://www.njlhs.burlco.org/ambrose.htm), but it's
under 200 feet and in any case, these things are usually just a few
miles offshore; I've never heard of one being built 50 miles out in
the Atlantic.