Which action should be taken if a standby diver detects an unsafe condition during the operation?

• A. Immediately abort the dive and declare a no-dive; proceed with no action.
• B. Notify the open-water rescue plan and wait for direction.
• C. Initiate the pre-planned safety procedures and alert the lead diver; begin rescue if necessary.
• D. Telex the office to create a report.

Answer: (C)

When a standby diver detects an unsafe condition, the priority is to act according to the pre-planned safety procedures and keep the lead diver in the loop. The best course is to alert the lead diver and carry out the actions outlined in the safety plan, including starting a rescue if needed. This ensures a fast, organized, and coordinated response that follows the established chain of command rather than improvising.

The standby diver is there to implement the documented procedures, not to unilaterally abort the dive or wait for external directions that aren’t part of the immediate plan. Quick, planned actions reduce risk for everyone and keep the operation under control. Delays by contacting offices or filing reports in the middle of an emergency don’t address the urgent safety needs in the water and can cost valuable time.