D.C. Code § 44-709
The Mayor of the District of Columbia is required to visit and investigate the management of all institutions of charity within the District which may be appropriated for out of the District revenues, in whole or in part, and shall require an itemized report of receipts and expenditures to be made to him, to be transmitted with his annual report to Congress, which report shall also include such recommendations as the Mayor may deem proper concerning the necessity for such institutions, together with a plan for their organization and management, and estimates of appropriations necessary for their maintenance.
D.C. Code § 44-709
Public welfare supervision, board of public welfare, institutions supported by congressional appropriations, see § 4-111. .