All Etihad Airways flights from Abu Dhabi to the U.S. have access to the U.S. Customs and Border Protection (CBP) Preclearance facility.
However, if you are arriving from or have been in Rwanda in the past 21 days, you will not be permitted to travel to Boston or use the U.S. Customs and Border Protection (CBP) Preclearance facility in Abu Dhabi. If that is the case, you will be booked on an alternative itinerary and will clear customs at an approved airport in the U.S.
If you’re a U.S. or Canadian resident, or travelling under the Visa Waiver Program, you can use a free Automated Passport Control (APC) kiosk. Located at the U.S. Customs and Border Protection (CBP) Preclearance facility, you can submit your customs declaration form and biometric information before speaking with a CBP officer.
If you’re not a U.S. citizen or legal resident, then you need to head to the U.S. Customs and Border Protection (CBP) Preclearance facility, where your biometric and fingerprint data will be processed, along with other preclearance requirements after check-in or arrival at the airport.