“The Red Book is a compendium of significant Office of Inspector General (OIG) costsaving recommendations that have not been fully implemented. These recommendations may require one of three types of actions: legislative, regulatory, or procedural (such as
manual revisions). Some complex issues involve two or all three types of actions. The Inspector General Act requires that the OIG’s semiannual reports to Congress include “an identification of each significant recommendation described in previous semiannual reports on which corrective action has not been completed.” Thus,
appendixes to each semiannual report list significant unimplemented recommendations.”