The Peace Corps will maintain a current index identifying any matter within the scope of § 303.4 or § 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 § 303.13(e). The Peace Corps will also make the index available on its public Web site.