(a) any person licensed on Guam, under any other law, from engaging in the profession or occupation for which the person is licensed;

(b) the activities and services of persons pursuing a course of study leading to a degree in audiology at an accredited college or university, if such activities and services constitute a part of an approved supervised course of study and such person is designated an audiologist intern or trainee;

(c) the activities and services of persons presently working on their Clinical Fellowship Year (‘CFY’) and such persons are designated as ‘CFY-Audiologist.’