; (2) an allowance of $2,500 per month to the Senior Medical Officer; (3) an allowance of $900 per month each to three medical officers while on duty in the Office of the Attending Physician; (4) an allowance of $900 per month to 2 assistants and $900 per month each not to exceed 11 assistants on the basis heretofore provided for such assistants; and (5) $3,054,000 for reimbursement to the Department of the Navy for expenses incurred for staff and equipment assigned to the Office of the Attending Physician, which shall be advanced and credited to the applicable appropriation or appropriations from which such salaries, allowances, and other expenses are payable and shall be available for all the purposes thereof, $4,764,000, to be disbursed by the Chief Administrative Officer of the House of Representatives. Office of Congressional Accessibility Services Salaries and Expenses For salaries and expenses of the Office of Congressional Accessibility Services, $1,766,000, to be disbursed by the Secretary of the Senate. CAPITOL POLICE Salaries For salaries of employees of the Capitol Police, including overtime, hazardous duty pay, and Government contributions for health, retirement, social security, professional liability insurance, and other applicable employee benefits, $588,627,000, of which overtime shall not exceed $74,976,000 unless the Committees on Appropriations of the House and Senate are notified, to be disbursed by the Chief of the Capitol Police or a duly authorized designee: Provided, That of the amounts made available under this heading, at least $3,167,000 shall be available for overtime to support mission requirements associated with the national political conventions and pre-inauguration preparedness