are conducted at least on an annual basis to ensure, among other things, compliance with this section. (2) Of the funds appropriated by this Act, up to $500,000 may be used by the Office of Inspector General of the United States Agency for International Development for audits, inspections, and other activities in furtherance of the requirements of this subsection: Provided , That such funds are in addition to funds otherwise available for such purposes. (e) Comptroller General of the United States Audit Subsequent to the certification specified in subsection (a), the Comptroller General of the United States shall conduct an audit and an investigation of the treatment, handling, and uses of all funds for the bilateral West Bank and Gaza Program, including all funds provided as cash transfer assistance, in fiscal year 2018 under the heading Economic Support Fund , and such audit shall address— (1) the extent to which such Program complies with the requirements of subsections (b) and (c)