I would not trust the states vet board or vet assoc to give you an honest answer. Best if you call the states attorney and get the code and interpretation. Laws vary from state to state, some require licensing, some require nothing, some require a degree. The issue has come about due to the shortage of large animal vets that know what they are doing.
Since I have heard and have experienced lots of open cows that calved and bred cows that never did, I will and do, hire whoever I feel is most competent, regardless of what fancy piece of paper they have hanging on their wall. Same with ET work, if they are successful, then I do not care if they have a gold frame on their wall.
There is a shortage of GOOD large animal vets. That is pretty obvious to darn near everyone. In my opinion, if they want to make preg checking and et work a "vet only practice", then they should be held accountable for "mistakes". There was/is a program to encourage new vets to practice in rural areas, but just because they are there to get look at a cow to get their student loans forgiven does NOT make them a large animal vet.
In summary, I prefer to hire someone that does not "PRACTICE" on my animals and then charge me to do it.