Unless the context or subject matter otherwise requires:

1. (a) "Soil classifier" shall mean a professional soil classifier as defined in subsection (b) of this section.
2. (b) "Professional soil classifier" shall mean a person who by reason of his special knowledge of the physical, chemical and biological sciences applicable to soils as natural bodies and of the methods and principles of soil classification as acquired by soils education and soil classification experience in the formation, morphology, description and mapping of soils is qualified to practice soil classifying and who has been duly registered by the State Board of Registration for professional soil classifiers.
3. (c) "Soil-classifier-in-training" shall mean a person who complies with the requirements for education and character and who has passed an examination in the fundamental soil and related subjects as provided for in Sections 40-65-100, 40-65-110, 40-65-120 and 40-65-130.
4. (d) "Soil" is all of the groups of natural bodies occupying the unconsolidated portion of the earth's surface capable of supporting plant life and having properties due to the combined effect of climate and living organisms, as modified by topography and time, upon parent materials.
5. (e) "Kind of soil" is a group of natural bodies that has a discrete combination landscape, morphological, chemical and physical properties.
6. (f) "Soil classification" is plotting the boundaries, describing and evaluating the kinds of soil as to their behavior and response to management under the various uses.

7. (g) "Practice of soil classifying and practice of professional soil classifying" shall mean any service or work the adequate performance of which requires education in the physical, chemical, biological and soil sciences, training and experience in the application of the special knowledge of these sciences to soil classification, the soil classification by accepted principles and methods, investigation, evaluation and consultation on the effect of measured, observed and inferred soil properties upon the various uses, the preparation of soil descriptions, maps and reports and interpretive drawings, maps and reports of soil properties and the effect of soil properties upon the various uses, and the effect of the various uses upon kinds of soil, any of which embraces such service or work either public or private incidental to the practice of soil classifying.

   A person shall be construed to practice or offer to practice soil classifying within the meaning and intent of this chapter who by verbal claim, sign, advertisement, letterhead, card or use of some other title represent himself to be a soil classifier, but shall not mean or include the practice of soil classifying by persons exempt under the provisions of Section 40-65-240 nor the work ordinarily performed by persons who sample and test soil for fertility status or construction materials and engineering surveys and soundings to determine soil properties influencing the design and construction of engineering and architectural projects. Notwithstanding the foregoing provisions, a person shall not be construed to practice soil classifying unless he offers soil classifying services to or performs such soil classifying for the public.

8. (h) "Department" shall mean the Department of Natural Resources.
9. (i) "Responsible charge" shall mean direct control and personal supervision of soil classification.