What is the minimum personnel requirement for penetration diving operations according to ADCI standards?

The minimum personnel requirement for penetration diving operations according to ADCI standards includes a supervisor, a diver, a tender, and additional topside tenders for safety and support. This diverse team structure is critical because penetration diving often occurs in environments that present higher risk, such as confined spaces or areas with limited visibility.

Including two topside tenders enhances the safety protocol by ensuring there are enough personnel to monitor and assist divers during their operation and to manage emergency situations effectively. The presence of these tenders means that someone can keep an eye on the divers’ well-being and provide assistance if needed, without putting additional burden on the dive team members who must remain focused on their tasks underwater.

In contrast, the other choices lack the necessary support personnel for safe penetration operations. While they may include a diver and a supervisor, the absence of adequate topside assistance exposes the operation to increased risk, compromising safety standards that the ADCI seeks to uphold. Therefore, the correct answer accurately reflects a comprehensive and safety-focused approach required for successful penetration diving operations.