What is a key component of declassification that can occur through E.O. 13526?

The correct answer highlights the automatic declassification of certain records as a key component of declassification under Executive Order 13526. This executive order outlines the process and guidelines by which classified information can be declassified, including provisions for automatic declassification.

Automatic declassification applies to records that have been classified for a certain duration—typically, 25 years—unless there is a specific reason to keep them classified, such as national security concerns. This means that after the designated time period, the information is automatically declassified and becomes publicly accessible, unless an agency determines that the information requires continued protection.

Other choices focus on methods of declassification that are not systematic or do not capture the broad, mandated approach described in Executive Order 13526. Immediate review of all classified items is impractical and not part of the established protocol, as it would overwhelm resources without a strategic timeline. Voluntary declassification missions and selective declassification on an as-needed basis are more discretionary processes, lacking the automatic and routine nature of declassification outlined in the executive order.