The Rigger III must be a certified Signalman.
Re-assessment due: [Date, typically 12–24 months or per site requirement] rigger level 3 aramco notes
Rigger Level 3 Aramco Notes - Study Materials and Tips The Rigger III must be a certified Signalman
(Where $\theta$ is the angle between the sling and the horizontal load). rigger level 3 aramco notes