As used in this chapter, unless the context otherwise requires:
(1) “Continuing education unit” means value given for participation in organized continuing education experience under reasonable sponsorship, capable direction, and qualified instruction approved by the Arkansas State Board of Sanitarians;
(2) “Environmental sanitation” means the study, art, and technique of applying scientific knowledge for the improvement of the environment of man for his health and welfare;
(3) “Registered sanitarian” means an environmental health professional educated in the field of environmental health, physical, and biological sciences who meets the requirements of § 17-43-303(a) and (b) and § 17-43-306. Such persons may be specifically trained to organize, implement, and manage environmental health programs; and
(4) “Sanitarian-in-training” means a person who meets the educational qualifications as provided in this chapter but does not meet the experience requirements of this chapter for registration as a registered sanitarian.