Michigan Compiled Laws, Chapter 333. Health § 333.18401

(a) “Environmental health” means an area of activity dealing with the protection of human health through the management, control, and prevention of environmental factors that may adversely affect the health of individuals. Environmental health is concerned with the existence of substances, conditions, or facilities in quantities, of characteristics, and under conditions, circumstances, or duration that are or can be injurious to human health.

(b) “Registered sanitarian” means a sanitarian registered in accordance with this article.

(c) “Sanitarian” means an individual who has specialized education and experience in the physical, biological, and sanitary sciences as applied to the educational, investigational, and technical duties in the field of environmental health.