The proposed legislation aims to nullify the applicability of the Act of July 2, 1948, specifically concerning the reservations of the Seneca Nation of Indians in New York. This 1948 Act previously granted certain jurisdiction to the State of New York over these tribal lands. If enacted, the bill would effectively remove New York State's jurisdiction , as established by the 1948 Act, from the Seneca Nation's reservations. This significant change in jurisdictional authority is conditional, requiring the written concurrence of both the Attorney General of the United States and the Seneca Nation of Indians to take effect.