((a)) The Fiscal Service is a service in the Department of the Treasury.
((b)) The head of the Fiscal Service is the Fiscal Assistant Secretary appointed under .
((c)) The Fiscal Service has a—
((1)) Bureau of Government Financial Operations, having as its head a Commissioner of Government Financial Operations; and
((2)) Bureau of the Public Debt, having as its head a Commissioner of the Public Debt.
((d)) The Secretary of the Treasury may designate another officer or employee of the Department to act as the Fiscal Assistant Secretary when the Fiscal Assistant Secretary is absent or unable to serve or when the office of Fiscal Assistant Secretary is vacant.