12 U.S.C. § 90 — Depositaries of public moneys and financial agents of Government

All national banking associations, designated for that purpose by the Secretary of the Treasury, shall be depositaries of public money, under such regulations as may be prescribed by the Secretary; and they may also be employed as financial agents of the Government; and they shall perform all such reasonable duties, as depositaries of public money and financial agents of the Government, as may be required of them. The Secretary of the Treasury shall require the associations thus designated to give satisfactory security, by the deposit of United States bonds and otherwise, for the safe-keeping and prompt payment of the public money deposited with them, and for the faithful performance of their duties as financial agents of the Government: Provided, That the Secretary shall, on or before the 1st of January of each year, make a public statement of the securities required during that year for such deposits. And every association so designated as receiver or depositary of the public money shall take and receive at par all of the national currency bills, by whatever association issued, which have been paid into the Government for internal revenue, or for loans or stocks: Provided, That the Secretary of the Treasury shall distribute the deposits herein provided for, as far as practicable, equitably between the different States and sections.

Any national banking association may, upon the deposit with it of any funds by any State^* or political subdivision thereof or any agency or other governmental instrumentality of one or more States or political subdivisions thereof, including any officer, employee, or agent thereof in his official capacity, give security for the safekeeping and prompt payment of the funds so deposited to the same extent and of the same kind as is authorized by the law of the State in which such association is located in the case of other banking institutions in the State.

Any national banking association may, upon the deposit with it of any funds by any federally recognized Indian tribe, or any officer, employee, or agent thereof in his or her official capacity, give security for the safekeeping and prompt payment of the funds so deposited by the deposit of United States bonds and otherwise as may be prescribed by the Secretary of the Treasury for public funds under the first paragraph of this section.

Notwithstanding chapters 1 to 11 of title 40 and division C (except sections 3302, 3307(e), 3501(b), 3509, 3906, 4710, and 4711) of subtitle I of title 41, the Secretary may select associations as financial agents in accordance with any process the Secretary deems appropriate and their reasonable duties may include the provision of electronic benefit transfer services (including State-administered benefits with the consent of the States), as defined by the Secretary.