Already an instructor with another agency? You can cross over to the BSAC for as little as £150.
Instructors have already been assessed, so we don't examine you again. However, we do want you to understand the differences between the BSAC and other agencies in terms of the approach to skills, methodology and general approach to diving and instructing, so we like you to join a club or work with a dive centre to gain that insight. We have a crossover course with includes all materials and it is not expensive!