How must walls in SCIFs be constructed?

Walls in Sensitive Compartmented Information Facilities (SCIFs) must be constructed from true floor to true ceiling to ensure comprehensive physical security and protection of sensitive information. This construction method eliminates any potential vulnerabilities that could arise from gaps or breaches within the space where sensitive information is handled. By using true floor to true ceiling, the integrity of the SCIF is maintained, preventing unauthorized access and ensuring that sensitive signals or sounds do not escape the premise.

This design also helps mitigate risks associated with eavesdropping or surveillance, as any weaknesses in the wall structure - such as those that could be present in choices emphasizing partial or false constructs - could be exploited by malicious actors. Ensuring that walls reach from the true floor to the true ceiling provides a continuous and effective barrier against potential security breaches, supporting the overall objectives of maintaining confidentiality, integrity, and availability of classified information within SCIFs.