What document must every facility handling classified information maintain?

Every facility handling classified information is required to maintain a security clearance log. This document is crucial for tracking who has access to classified information, ensuring that only those individuals with the proper clearances and need-to-know are permitted entry to sensitive areas or information. The log serves several important functions: it helps in compliance with regulatory requirements, facilitates audits, enables the identification of personnel with security clearances, and assists in managing and mitigating potential security risks related to access to classified materials.

The other options are not relevant to the specific requirements for handling classified information. A financial audit report pertains to the financial health of the organization, which is unrelated to security access or information protection. An employee handbook, while important for defining workplace policies and procedures, does not specifically address security clearance or classified information handling. A marketing strategy document focuses on promoting the business and does not have any relevance to the security measures and access controls necessary for classified information.