In April 2015 the society announced the appointment of
Philippe de Montebello to chair the society's Board of Overseers and spearhead a major effort to roughly double the museum's size by renovating the vacant Beaux Arts building adjacent to the society's original museum building. It was formerly used by the
Museum of the American Indian, which had moved years before to the former
U.S. Custom House in lower Manhattan. Beginning January 1, 2017, the museum was closed for extensive renovations, although the library was open on a limited basis by appointment only. The $15 million project replaced the building's roof and lighting. Originally scheduled to reopen in the fall of 2019, progress was delayed, with the new East Building Gallery, formerly the Museum of the American Indian, opening in 2021 for rotating exhibitions, followed by a general reopening in June 2023. While the museum was closed, many of its works were lent to other institutions. About 200 of the society's most important works were displayed from April through September 2017 at the
Museo del Prado in Madrid. The exhibit traveled to the
Museo del Palacio de Bellas Artes in Mexico City from June through September 2018; the
Albuquerque Museum of Art and History, November 2018 through March 2019; the
Cincinnati Art Museum, October 2019 through January 2020; and the
Museum of Fine Arts, Houston from March to May 2020. There was also a major exhibition in London in 2023. Admission to the museum has always been free, in accordance with Archer Huntington's trust. Due to financial difficulties, the society went to court in 2016 in order to be allowed to charge an admission fee to temporary exhibitions to be held in the museum's new facility, while keeping the main hall free. As of 2022, admission to the new galleries is free. In 2020 the museum appointed Guillaume Kientz, former curator at the
Louvre and the
Kimbell Art Museum, as its new director.
Unionization and strike In May 2021, workers at the museum filed their intent to unionize with the
National Labor Relations Board, joined local 2110 (the Technical, Office, and Professional Union) of the
United Automobile Workers, and began contract negotiations with the museum. In February 2023, the staff sent an open letter containing a list of complaints to the museum's board of trustees. On March 27 the workers authorized a strike in response to the museum's planned reopening. The current contract removed coverage for health insurance premiums and deductibles. The union stated that proposed salary increases would not offset the costs of the loss of benefits and that the administration had left the museum short-staffed and the collection in jeopardy due to a lack of safeguards. The union asked for minimum salaries for union positions on par with other museums in the city, guaranteed future wage increases, a retroactive wage increase, and restoration of health care coverage. On May 19, the workers ended the strike after ratifying a contract with the museum. The two-and-a-half-year contract entailed raised salaries, a
403(b) plan, and preserved fully-paid health benefits. It also established severance pay, and professional development funds. ==Notable people==