Indiana is an EPA Phase 2 state. The Indiana Codes states that when a dealer delivers a stove, they have to give a copy of the code to the homeowner AND they can't leave the stove until the new owner has signed a form stating that they have received a copy of the state code. That code is what tells you what you can and can't do with your boilers. Indiana also has the 350,000 BTU allowance for conventional boilers.
Now, the Indiana EPA does not have any "teeth" in the law. They cannot "shut you down." I found a document online from a summary of public hearing comments from before the law was passed, and several people who were against wood boilers alltogether, commented ans asked the EPA what they can do to "enforce" the law. Their answer was basically, we can't. There is no fine structure, no penalty structure and no funding to "patrol" the countryside. They stated that they operate under a "neighbor complaint" type policy. Even after they receive a complaint, there really isn't any force behind the statute. All they can do is horass you. You may look up the New York code and read the fine print. I happened to order out of state and got a conventional boiler. I heard from a dealer who often sells boilers across state lines that he has gotten letters from the Indiana EPA asking him to stop it.