(a) The Joint Committee shall prepare and submit to the Mayor and the Council of the District of Columbia annual estimates of the expenditures and appropriations necessary for the maintenance and operations of the District of Columbia courts, and shall submit such estimates to Congress and the Director of the Office of Management and Budget after submitting them to the Mayor and the Council. All such estimates shall be included in the budget without revision by the President but subject to the President’s recommendations.
(b) The District of Columbia Courts may make such expenditures as may be necessary to execute efficiently the functions vested in the Courts.
(c) All expenditures of the Courts shall be allowed and paid upon presentation of itemized vouchers signed by the certifying officer designated by the Joint Committee. All such expenditures shall be paid out of moneys appropriated for purposes of the Courts.