CIA ended its remote-viewing research in 1977 and transferred the program to the Defense Intelligence Agency (DIA).
Notes on verification
Confirmed by CIA's own official statement and corroborated by History.com and other secondary sources. Minor ambiguity exists around exact program naming/transition dates due to overlapping code names (SCANATE, GONDOLA WISH, GRILL FLAME, STAR GATE), but the core claim of CIA-to-DIA transfer around 1977 is well supported.