Section 1907.21 - Exceptions(a) Documents required to be submitted for prepublication review or other administrative process pursuant to an approved nondisclosure agreement is not covered by this section.(b) Whenever the Agency receives a classification challenge to information that has been the subject of a challenge within the past two years, the Agency is not required to process the challenge beyond informing the challenger of this fact and the prior review decision; advising the challenger of the right to appeal a final Agency decision to the Interagency Security Classification Appeals Panel (ISCAP); and informing the challenger that if they wish to exercise this right, they must do so through Chief, Classification Management and Collaboration Group who will then forward the appeal to the ISCAP.(c) The Agency is not required to process classification challenges to information that is the subject of pending litigation. If the information that is the subject of a challenge falls into this category, the Agency will take no action on the challenge and will notify the challenger of this fact within 10 business days. 76 FR 59031 , Sept. 23, 2011