Examples of acceptable training are: 1.) Courses in a dental hygiene or dental assistant program accredited by the American Dental Associations Commission on Accreditation that are directly related to the intra-oral procedures(also referred to as expanded functions) that are to be performed in the position to be filled; 2.) U.S. Armys Dental Therapy Assistant Training Program; 3.) Continuing education courses in expanded functions for dental assistants offered by the Indian Health Service of the Department of Health and Human Services; 4.) Other training comparable to the above in private or governmental hospitals, clinics, or schools that included formal classroom instruction and clinical training in the knowledge and skills required to perform intra-oral procedures in the position to be filled. Persons first employed by the Federal Government as radiologic personnel after the effective date of the regulation who (a) received training from institutions in a State or foreign jurisdiction that did not accredit training in that particular field at the time of graduation, or (b) practiced in a State or foreign jurisdiction that did not license that particular field or did not allow special eligibility to take a licensure examination for those who did not graduate from an accredited educational program, provided such persons show evidence of training, experience, and competence, as determined by OPM or the employing agency.