During the 45-day verification period for automated systems, what minimum accuracy must be achieved?

• A. 100%
• B. 99.5%
• C. 99.9%
• D. 99.985%

Answer: (D)

During a 45-day verification period, the goal is to show the automated system can operate with extraordinarily high accuracy under real-world conditions. The minimum of 99.985% means only about 0.015% of outputs may be incorrect over the workload seen in that window. That tiny margin keeps the expected number of errors small even when processing large volumes, helping keep risk and the need for downstream correction manageable. Achieving perfect 100% is usually unrealistic because occasional glitches or data quirks occur, while lower thresholds like 99.5% or 99.9% would allow more errors to slip through, which could become unacceptable over 45 days. So 99.985% is set as the practical, rigorous standard for the verification period.