Which of the following is a required source selection evaluation criterion for any defense acquisition program?

• A. Schedule
• B. Cost
• C. Past Performance
• D. Technical Risk

Answer: (B)

Cost evaluation is required in defense source selections because affordability and lifetime value are inseparable from choosing the best solution. Government programs must consider not just the upfront price but the total ownership cost over the system’s life—production, support, maintenance, and end-of-life costs—to ensure funds are used wisely and within budget. This cost/price assessment provides a hard basis for comparing proposals and balancing technical capability with what the program can actually afford, which is essential for a sound best-value decision. Other factors like schedule, past performance, or technical risk are important, but they do not replace the mandatory need to evaluate cost to ensure affordability and overall value.