The Peace Corps will maintain a current index identifying any matter within the scope of Sec. 303.4 or Sec. 303.5(b)(1) through (5). The index will be maintained and made available for public inspection and copying at the Peace Corps' headquarters in Washington, DC. The cost of a copy of the index will not exceed the standard charge for duplication set out in Sec. 303.13(e). The Peace Corps will also make the index available on its public Web site.