Not sure if this has come up recently, but we received quite a shock when we checked in for a flight from the US (Orlando) to Puerto Plata on AA. At the ticket counter as we were checking in the agent told us that, since we did not have DR Residency, we had to purchase a return ticket to the US. A supervisor checked that somewhere and confirmed the requirement. We have traveled the same route four (4) times in the last year and can prove we never had to purchase a mandatory return ticket. We don't have residency and often returned in less than 30 days from POP to Miami. So, unless it's a brand new regulation, AA was negligent in not enforcing the regulation before yesterday and was egregiously negligent in not telling us at the time of booking of the requirement that a return ticket was required. So, future travelers beware. They did promise a refund after our request for one but this Kabuki dance isn't fun when traveling.