I just recently got my IR1 visa approved and I'll be entering the US for the first time after the approval very soon. I booked my flight with Aer Lingus, however the API is offering me three options regarding passport or resident status, namely, "US Passport Holder", "Landed Resident" or "Non-Us Resident". Which one do I pick here from the latter of the two? If I choose landed resident, I'm offered to input either an Alien Registration Card Number or a Permanent Resident Card number. I do have a registration number on the visa I've received in my passport but I'm uncertain if it's the same number the API is asking me or no. I was under the impression that I don't become a LPR until I clear entry into the US anyway. I'll be going thru Dublin using the US Pre-clearance FWIW. Anyone knows the correct way to proceed?