CHW scope of practice limitations with asthma education

I recently had a question from a fellow asthma educator in NY concerning the scope of practice limitations for CHWs in regard to instruction on asthma medication device usage in her state.   She stated that instruction on medication device usage is limited to licensed professionals in NY.  This would include instruction on how to use a spacer with an MDI.  In New York, this can only be done by a licensed RN, RT, PA, NP, MD, pharmacist, etc.   It would be interesting to know if NY is the only state that limits this, or if it is the law in other states, do they have ways around it without getting the CHW into trouble?    

I am from SC and have never heard of any limitations.   Anyone else?