Which of the following is NOT a method listed under SCOF Level 2?

In the context of SCOF Level 2, the correct answer highlights a method that is not typically listed in the established protocols for managing situations involving a craft of interest (COI). Hailing by radio is a communication method, but it may not be categorized under the specific operational methods like shining spotlights, using warning devices, or shouldering/herding, which are more direct intervention tactics.

Shining spotlights on the pilothouse serves a clear purpose of visually signaling to the COI, ensuring they are aware of your presence and drawing their attention. Using unambiguous warning devices ensures that there is no confusion regarding intent in a potentially dangerous situation. Shouldering or herding the COI involves physical maneuvers to guide or control the movement of the vessel, which directly relates to tactical control of the situation.

Each of these methods is designed to actively manage the situation and provide clear immediate feedback to the operators of the COI. In contrast, hailing by radio may not directly influence the physical environment or control the actions of the vessel to the same extent. Therefore, it is less aligned with the intervention-focused nature of the techniques emphasized in SCOF Level 2.