I qualified as an assessor a few years ago, in theory anything I qualify in I can train in, if that makes sense. I cam assess (teach/train) up to a level 5 in care as I'm qualified to a level 5 and I can assess up to a level 3 in beauty. Thats just a very general explanation. the assessors course is a pretty short course to take, just a thought
to do actual tanning, I did the St Tropez training and added it to my insurance