Records of temporary usefulness that are not an integral part of a records series of an agency and are not essential to the fulfillment of statutory obligations or to the documentation of agency functions. Some examples of transitory information, which can be in any media (instant messaging, voice mail, fax, email, hard copy, etc.) are routine messages; telephone message notifications; internal meeting notices; routing slips; incoming letters or memoranda of transmittal that add nothing of substance to enclosures; and similar routine information used for communication, but not for the documentation, of a specific agency transaction.