This document contains software qualification assessment criteria and guidelines for assessing the safety system software used for instrumentation and controls (I&C) at Department of Energy (DOE) defense nuclear facilities. The criteria and guidelines fulfill Commitment 126.96.36.199 of the DOE Implementation Plan (IP) for Defense Nuclear Facilities Safety Board (DNFSB or Board) Recommendation 2002-1, Quality Assurance for Safety Software at Department of Energy Defense Nuclear Facilities. Commitment 4.2.3 of the IP specifies three actions DOE will take to assess the processes in place to ensure that the safety software currently used in instrumentation and controls at defense nuclear facilities is adequate. Commitment 188.8.131.52 requires the Office of Environment, Safety and Health (EH) to develop and issue a Criteria Review and Approach Document (CRAD) for the identification, selection, and assessment of the safety system software. Commitments 184.108.40.206 and 220.127.116.11 require the Program
Secretarial Officers (PSOs) and Field Element Managers to develop a schedule and complete the assessments using this CRAD.