NIST released, for public comment, the final draft of Assessing Security Requirements for Controlled Unclassified Information (NIST SP 800-171A), a publication intended to help organizations develop assessment plans and conduct efficient, effective, and cost-effective assessments of the security requirements in Protecting Controlled Unclassified Information is Nonfederal Systems and Organizations (NIST SP 800-171). The public comment period for NIST SP 800-171A is open until March 23.