When should classified documents be reviewed for possible declassification?

Classified documents should be reviewed for possible declassification at regular intervals as established by policy. This approach ensures that classified information is consistently evaluated based on current security needs, relevance, and the potential for public release. Regular reviews help manage the lifecycle of classified information, allowing for timely updates and declassification as circumstances change or as the information loses its sensitivity over time. This systematic process supports transparency and accountability, while maintaining national security interests.

The other options presented suggest specific scenarios that do not align with the broader and more proactive policy-driven approach of regular review. Only reviewing documents when a new administration takes office implies a limited timeframe that may overlook the ongoing need for evaluation. After major project completions and responding to requests from foreign governments are also reactive scenarios, which do not adhere to the established policies that call for periodic review regardless of specific triggers.