§ 8512. Exempt persons. This article shall not prohibit:

1. a respiratory therapy student or a respiratory therapy technician student from engaging in clinical assistance under the supervision of a licensed respiratory therapist or a licensed or otherwise legally authorized physician as an integral part of a program of study by students enrolled in an approved respiratory therapy technician program or in a clinical facility or health care agency affiliated with the program for respiratory therapy technicians; or

2. the performance of any of the tasks or responsibilities included in the definition of respiratory therapy technician by any other duly licensed, certified or registered health care provider, provided that such tasks or responsibilities are within the scope of his or her practice; or

3. unlicensed assistants from being employed in a hospital, as defined in article twenty-eight of the public health law, for purposes other than the practice of respiratory therapy technician; or

4. the practice of respiratory therapy by any legally qualified respiratory therapy practitioner of any other state or territory who is serving in the armed forces or the public health service of the United States or who is employed by the veterans administration, while engaged in the performance of his or her duties.