Of course any kind of serious work on an electrical drive train is going to need an electrical engineer. EE's are exceedingly rare in most blue collar industri

Of course any kind of serious work on an electrical drive train is going to need an electrical engineer. EE's are exceedingly rare in most blue collar industries that work on substantially more complex electrical systems than EV's. Most folks in this industry go to trade schools or are sponsored by a company to learn on the job. How this translates to Tesla's remains to be seen. AFAIK you have to take your Tesla back to the dealership for most things, certainly for any warranty work. I would expect at some point there to be a short class and certification that mechanics attend at Tesla. When Tesla is big enough I would expect that to evolve to some third party company that certifies mechanics. All of this assumes that Tesla continues to grow towards the size and scale of any of the current automobile manufacturers.