IC 25-31-1-2
Definitions Sec. 2. As used in this chapter:

    (b) "Professional engineer" means an individual who, by reason of that individual's special knowledge of the mathematical and physical sciences and the principles and methods of engineering analysis and design which are acquired by education and practical experience, is qualified to engage in the practice of engineering as attested by that individual's registration as a professional engineer.

    (d) "Practice of engineering" means any service or creative work that the adequate performance of requires engineering education, training, and experience in the application of special knowledge of the mathematical, physical, and engineering sciences to services or creative work that includes the following:
        (1) Consultation.
        (2) Investigation.
        (3) Evaluation.
        (4) Planning, including planning the use of land and water.
        (5) The design of or the supervision of the design of engineering works and systems.
        (6) Engineering surveys and studies or the supervision of engineering surveys and studies, including all surveying activities required to support the sound conception, planning, design, construction, maintenance, and operation of engineered projects, but not including the surveying of real property for the establishment of land boundaries, subdivisions, rights-of-way, easements, and the dependent or independent surveys or resurveys of the public land survey system.
        (7) Evaluation of construction for the purpose of assuring compliance with specifications, plans, and designs, in connection with any public or private utilities, structures, buildings, machines, equipment, processes, work systems, or projects.
The term "practice of engineering" does not include the work ordinarily performed by persons who operate or maintain machinery or equipment.