What might a security clearance level specifically restrict?

A security clearance level specifically restricts the locations an assessor can access during evaluations because it indicates the level of trustworthiness and the ability to handle sensitive information. Assessors with different clearance levels may be authorized to access only specific areas, whether physical spaces or data systems, and may be restricted from entering locations that house highly classified information. This ensures that sensitive materials are only accessed by individuals with the appropriate clearance, safeguarding national security or organizational confidentiality protocols.

While the other options refer to different aspects of the assessment process, they are not directly tied to the concept of security clearance levels. For example, the type of assessments performed and the tools available may not inherently require a specific clearance; rather, they depend on the scope and purpose of the assessment. Additionally, the number of assessors participating in an assessment can vary based on the nature of the evaluation and organizational policies but is not restricted by an individual's clearance level.