The Secretary of the Treasury (the Secretary), under the authority of Title 31, Chapter 31, offers retirement savings bonds to the IRA custodian for Treasury's retirement savings program and to the Auto-IRA custodians for certain state Auto-IRA programs. The nonmarketable bonds are issued to and held by the custodians, on behalf of participants, in Treasury's program and state programs. This offering will continue until terminated by the Secretary or the Secretary's designee. Treasury's Fiscal Assistant Secretary is authorized to act on behalf of the Secretary on all matters contained in these regulations. The Commissioner of the Fiscal Service, as designee of the Secretary, is delegated the responsibility to administer this part through the Bureau of the Fiscal Service (Fiscal Service).