This is a person who holds an SA Sailing  Learn to Sail level 4: Improving My Skills certificate

This person must be a competent sailor.

The Assistant Instructor is trained by a Senior Instructor, and may only train or assist training under the direct supervision of a Senior Instructor in the centre where they were trained.

Must Complete the Safeguarding Personal clearance process ; - Find a course - South African Sailing Association - Safeguarding Personal Clearance has all the details and forms needed as well as the links to training.