NIST develops and issues standards, guidelines, and other publications to assist federal agencies in implementing the Federal Information Security Management Act (FISMA) and in managing cost-effective programs to protect their information and information systems.
Footnotes:
1. While agencies are required to follow NIST guidance in accordance with OMB policy, there is flexibility within NIST's guidance in how agencies apply the guidance. Unless otherwise specified by OMB, the 800-series guidance documents published by NIST generally allow agencies some latitude in their application. Consequently, the application of NIST guidance by agencies can result in different security solutions that are equally acceptable, compliant with the guidance, and meet the OMB definition of adequate security for federal information systems. When assessing agency compliance with NIST guidance, auditors, evaluators, and/or assessors should consider the intent of the security concepts and principles articulated within the particular guidance document and how the agency applied the guidance in the context of its specific mission responsibilities, operational environments, and unique organizational conditions.
2. The one-year compliance date for revisions to NIST Special Publications applies only to the new and/or updated material in the publications resulting from the periodic revision process. Agencies are expected to be in compliance with previous versions of NIST Special Publications within one year of the publication date of the previous versions.