In Section R156-73-102, the proposed amendments add definitions used in reference to continuing education standards and medical retainer agreements. In Section R156-73-302b, the proposed amendments correct the examinations referenced by the National Board of Chiropractic Examiners as the exam provider and delete the Special Purposes Examination for Chiropractic (SPEC) as an examination meeting the qualifications for licensure. In Section R156-73-303b, proposed amendments add an additional sponsorship or approval organization for continuing education. The proposed amendments also make changes to uniformly reference organizations by their acronyms. In Section R156-73-501, the proposed amendments clarify unprofessional conduct relating to billing practices and specify adopted professional standards. Section R156-73-501a is new and is added to clarify standards for billing practices involving medical retainer agreements (pre-paid services).