the Hudson Subdivision, handling all maintenance and capital responsibilities. Even with this move, Amtrak still operates less than half of the trackage along the Adirondack route. In 2012, U.S. Customs and Border Protection began planning a preclearance facility at Montreal Central Station, which would allow departing passengers to be prescreened in Montreal, where northbound passengers would be processed by the Canada Border Services Agency upon arrival, rather than at the border itself. Presently, the Adirondack must stop at Lacolle, Quebec northbound and Rouses Point, New York southbound for immigration procedures that can take up to two hours. By early 2017, the United States Congress had passed its necessary enabling legislation. The corresponding Canadian legislation was given royal assent in late 2017, though it is yet to enter into force. On April 10, 2018, Amtrak announced that all trains using the Empire Connection, excluding the Lake Shore Limited, would operate into Grand Central Terminal from May 26 to September 4, 2018, to allow work on the Empire Tunnel, the Spuyten Duyvil movable bridge, and Track 19 in New York's Penn Station. Due to continuing infrastructure work at Penn Station, the northbound Adirondack ran combined with the northbound Maple Leaf for most of the summer of 2019, splitting in Albany. The two trains ran separately on weekends during July and August. In March 2020, the Adirondack was truncated to Albany–Rensselaer after all non-essential travel across the Canada-United States border was banned in response to the COVID-19 pandemic. In July 2021, Adirondack service was suspended following the resumption of Ethan Allen Express service to Rutland, which overlaps the Adirondack between New York City and . In October 2022, Amtrak began running crew re-qualification trips in preparation of the train's return. Service from New York City to Albany resumed on December 5, 2022. Full service resumption to Montreal is expected in the spring of 2023, following delays. Operation Equipment Most Adirondack trains consist of five to seven cars hauled by a locomotive. The passenger cars are the Amfleet series built by the Budd Company in the mid-1970s to early-1980s. Most trains include a Café car (food service/lounge) and four to six Coach Class cars. Unlike other Empire Corridor trains, the Adirondack does not offer business class seating. All cars offer complimentary WiFi, an electric outlet (120 V, 60 Hz AC) at each seat, reading lamps, fold-out tray tables. Passengers self-select seats on a first-come,