NIST SP 800-37 is a publication by the National Institute of Standards and Technology that provides guidelines for managing information security risk. It outlines a structured process for integrating security and risk management into the system development life cycle, ensuring that organizations can effectively protect their information systems. The framework emphasizes a risk management framework (RMF) that includes steps such as categorizing information systems, selecting security controls, implementing those controls, and continuously monitoring their effectiveness. This approach helps organizations make informed decisions about their security posture and compliance with federal regulations.