In defense acquisition, demonstration of a new technology in a relevant environment is required before which milestone?

• A. Milestone C
• B. Initial Operational Capability
• C. Milestone A
• D. Milestone B

Answer: (D)

Demonstrating a new technology in a relevant environment is a risk-reduction step that verifies the technology can perform outside the lab and in realistic conditions. This validation is required before moving into the Technology Development phase, which is the gate for Milestone B. By showing the technology works in a representative setting, you confirm its maturity and inform design choices, budgets, and schedules for further development. Earlier milestones focus on concept feasibility, while later milestones address production and deployment, which depend on having already proven the technology in a relevant environment.