In this subdivision, "bill with a fiscal impact" means any bill or joint resolution introduced into either house of the general court:
I. Which would require the state or a city or town or county to appropriate or expend funds or both; or
II. Which would have the effect of changing the taxable valuation of a city or town or county by creating, expanding, increasing or reducing tax exemptions; or
III. Which would otherwise have the effect of changing the revenues of the state or a city or town or county.