is responsible for the structural and mechanical care and maintenance of the Thurgood Marshall Federal Judiciary Building and improvements, including the care and maintenance of the grounds of the Building, in the same manner and to the same extent as for the structural and mechanical care and maintenance of the Supreme Court Building under section 6111 of this title; and

shall perform all other duties and work required for the operation and domestic care of the Building and improvements.

This chapter does not interfere with the obligation of the Marshal of the Supreme Court to protect justices, officers, employees, or other personnel of the Supreme Court who may occupy the Building and other improvements.

The Architect shall transfer from the account described in section 6507 of this title amounts necessary to reimburse the United States Capitol Police for expenses incurred in providing exterior security under this subsection. The Capitol Police may accept amounts the Architect transfers under this paragraph. Those amounts shall be credited to the appropriation account charged by the Capitol Police in carrying out security duties.