32 C.F.R. § 2002.8 Downgrading.
Title 32 - National Defense
Foreign government information classified “Top Secret” may be downgraded to “Secret” after 30 years unless the agency with declassification authority over it determines on its own, or after consultation, as appropriate, with the foreign government or international organization of governments which furnished the information, that it requires continued protection at the “Top Secret” level.
Title 32: National Defense
PART 2002—GENERAL GUIDELINES FOR SYSTEMATIC DECLASSIFICATION REVIEW OF FOREIGN GOVERNMENT INFORMATION
§ 2002.8 Downgrading.
