What do the statuses mean?

OpeN = This NOI is active and open for public comment.
closed = The comment period for this NOI has passed. The information is still displayed here, but no longer available for public comment.

Can I get a copy of the original, published Notice of Intent?

Yes! The published NOI should be available for download at the bottom of the page in the 'Files' section. If it isn't present, please send a comment email to the contact above