Genealogy: How can one discover regulations?

Question:

Genealogy: How can one discover regulations?

when leaving Ireland and before sailing to U.S.?

Best Answer - Chosen by Asker: Travel regulations? There were none, at least not in the 19th century. Buy a ticket get on the boat. The English WANTED as many of the Irish to leave as possible. We Americans wanted people as long as they weren't sick...er..or Chinese lol.