This chapter governs the practice of radiation therapy, radiography, nuclear medicine technology, and radiology assistance. This chapter does not prohibit: A radiation therapy, radiography, nuclear medicine technology, or radiology assistance student enrolled in an educational program from practicing radiation therapy, radiography, nuclear medicine technology, or radiology assistance in the educational program; An individual employed by the federal government as a radiation therapist, radiographer, nuclear medicine technologist, or radiologist assistant from practicing within the scope of that employment; or An individual from practicing a health occupation that the individual is authorized to practice under the Health Occupations Article.