I was going to point out their status as American territories...
Yes, but they're not part of North America. If Hawaii wasn't explicitly included, it wouldn't be part of Westercon either.
Is there a rule for what offshore islands are considered North America and which aren't, for Westercon purposes?
No, there isn't. "North America" is a geographical distinction, not a political one. The sensible interpretation (and the one I'd make if it ever came up, which it could) is any islands that are parts of US or Mexican states or Canadian provinces associated with the North American continent. The reason this could come up is that it's not impossible that someone might bid Victoria BC, that being in my opinion the only city of any decent size that's on a North American island on the west coast.
no subject
Yes, but they're not part of North America. If Hawaii wasn't explicitly included, it wouldn't be part of Westercon either.
No, there isn't. "North America" is a geographical distinction, not a political one. The sensible interpretation (and the one I'd make if it ever came up, which it could) is any islands that are parts of US or Mexican states or Canadian provinces associated with the North American continent. The reason this could come up is that it's not impossible that someone might bid Victoria BC, that being in my opinion the only city of any decent size that's on a North American island on the west coast.