Under Part 107 regulations, what condition disqualifies someone from serving as a Remote Pilot in Command (RPIC)?

The condition that disqualifies someone from serving as a Remote Pilot in Command (RPIC) under Part 107 regulations is having a blood alcohol concentration of .04 percent or greater. This regulation aligns with the Federal Aviation Administration's (FAA) standards for pilots operating under 14 CFR Part 91, which also maintains the same threshold for impairment due to alcohol.

Part 107 allows for a strict standard to ensure the safety of flight operations. A BAC of .04 percent or higher signifies a significant level of alcohol presence in the body, which can impair cognitive functions and motor skills necessary for safe piloting. The FAA enforces this standard to prevent any potential risks associated with intoxication in aviation operations, ensuring that Remote Pilots are capable of exercising care, judgment, and responsibility.

Other specified BAC levels either do not apply within the regulatory framework or do not represent the threshold for disqualification as clearly as the .04 percent standard, making it the correct choice for this question.