As used in this chapter:
.
"Practice of environmental health" does not include sampling, testing, controlling of vectors, reporting of observations, or other duties that do not require application of specialized knowledge and skills in environmental health science performed under the supervision of a registered environmental health specialist.
The director of health may further define environmental health science in relation to specific functions in the practice of environmental health through rules adopted by the director under Chapter 119. of the Revised Code.
R.C. § 3776.01