Which document outlines the guidelines for managing security controls within eMASS?

The document that outlines the guidelines for managing security controls within eMASS is NIST SP 800-53. This publication focuses on providing a robust framework for selecting and specifying security controls for federal information systems and organizations. It offers a catalog of security controls that align with the requirements of the Federal Information Security Management Act (FISMA) and helps organizations adequately protect their information systems.

NIST SP 800-53 emphasizes a risk management framework and incorporates a comprehensive set of security controls that can be tailored to different types of systems. It is essential for compliance and security assessments within eMASS, which is designed to support the assessment and authorization of security controls.

The other referenced documents serve different purposes: NIST SP 800-30 deals primarily with risk assessment processes, NIST SP 800-37 provides guidance on the Risk Management Framework for federal information systems, and NIST SP 800-171 outlines requirements for protecting controlled unclassified information but does not specifically address the management of security controls like NIST SP 800-53 does.