EDS Blue Pages

Definition
The EDS Blue Pages provide contact information for counterterrorism-related watch centers, sorted by organizational hierarchy. They are similar to a telephone book's "Blue Pages" listing. Blue Pages are generally available to anyone who has access to the SCI and Secret security domains. However, some filtering of Secret network users and enclaves may be conducted to limit what organizational hierarchy and contact information is made available to certain users.

Source

 * Information Sharing Environment Implementation Plan, at 52.