Pub. L. 93-305, tit. I, ch. XII, under "United States Secret Service"
United States Secret Service
United States Secret Service salaries and expenses For an additional amount for “Salaries and expenses”, including purchase of an additional eleven passenger motor vehicles for police-type use, $2,700,000: Provided, That funds appropriated to the United States Secret Service shall be available to provide protection to the immediate family of the Vice President of the United States.