• On-site supervision - the supervising Instructor must be present at the venue where training is carried out while instruction is in progress. They will previously have briefed the assistant instructor to assist them to prepare for the lesson and will discuss how the assistant instructor felt that the lesson went immediately afterwards.
• Direct-supervision - while instruction is being carried out by an assistant instructor, it must be continually monitored by the supervising instructor, who must also be positioned where they can intervene in the lesson when safety considerations so demand. For in-water instruction this means that the supervising instructor must be in the water with the group under instruction.
Ocean Diver
• Assistant Diving Instructors qualified to Sports Diver - can teach Classroom, Sheltered water lessons under on-site supervision and Open water lessons under the direct supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Assistant Diving Instructors qualified to Dive Leader - can teach Classroom, Sheltered water lessons, and Open water lessons under the on-site supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Assistant Open Water Instructors – can teach Classroom and Sheltered Water lessons under on-site supervision and Open Water lessons under on-site supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Theory Instructor - can teach Classroom lessons unsupervised.
• Practical Instructor - can teach Sheltered Water and Open Water lessons unsupervised.
• Open Water Instructor - can teach all elements of the Ocean Diver Course.
Sports Diver
• Assistant Diving Instructors qualified to Sports Diver - can teach classroom, sheltered water lessons under on-site supervision and open water lessons under the direct supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Assistant Diving Instructors qualified to Dive Leader - can teach classroom, sheltered water lessons, and open water lessons under the on-site supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Assistant Open Water Instructors – can teach Classroom and Sheltered Water lessons and Open Water lessons under on-site supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Theory Instructor - can teach classroom lessons unsupervised.
• Practical Instructor - can teach Sheltered Water and Open Water lessons unsupervised.
• Open Water Instructor - can teach all elements of the Sports Diver Course.
Dive Leader
• Assistant Diving Instructors do not hold the appropriate Instructor qualifications to teach this Diving Grade.
• Assistant Open Water Instructors – can teach classroom and sheltered water lessons under on-site supervision, Open Water lessons under the direct (i.e. in water) supervision of an Instructor who holds the minimum qualification of BSAC Open Water Instructor.
• Theory Instructor - can teach classroom lessons unsupervised.
• Practical Instructor - can teach Open Water lessons unsupervised.
• Open Water Instructors - can teach all elements of the Dive Leader Course.
Advanced Diver
• Practical Instructors, Theory Instructors, Assistant Diving Instructors and Assistant Open Water Instructors do not hold the appropriate Instructor qualifications to teach this Diving Grade.
• Open Water Instructors who are themselves Advanced Divers - can teach most elements with the exceptions noted below.
The following lessons must be carried out either by an Advanced Instructor, or by an Assistant Advanced Instructor under the on-site supervision of an Advanced Instructor:
• AT1 The Role of the Advanced Diver
• AP1 Expedition Planning
• AP2 Dive Planning and Management