Frosty, Mark and Tom are both vets and are certified by the AETS. I used to be up until 1990 or so when they changed that rule.
You are also correct in saying that it had become predominatly a VET procedure, but ONLY due to thier locking up the drugs we all use. I buy all my supplies from licensed vets -- especially all the RX drugs. This keeps me legal and every one is happy!
31 years in any business will teach you more than any school could possibly do -- so if I can help any one -- don't hesitate to ask. I don't know every thing there is to know, but I have aquired a whole bunch of scars over the years from DOIN IT!
Good luck -- as they saif, be prepared for a long learning curve with lots of pit falls, but once you do get there -- it will all be worth it!
Terry