Indiana Code Title 24. Trade Regulation § 24-4-11-6

(1) The anticipation and recognition of workplace environmental factors and stresses, including chemical, physical, biological, and ergonomic stresses, and the understanding of their effect on people and their well-being.

(2) The evaluation, through observation, sampling, testing, and with the use of quantified measurement techniques, of the magnitude of workplace environmental factors and stresses.

(3) The prescription of methods for prevention, elimination, control, or reduction of environmental factors and stresses and their effects.  Methods include the following: