A physical therapist assistant works in a clinic in a state…

A physical therapist assistant works in a clinic in a state that doesn’t require physical therapist assistants to earn continuing education credits.  The physical therapist assistant begins to feel “rusty” in the use of modalities, which are used frequently in the clinic. What does the American Physical Therapy Association document “Standards of Ethical Conduct for the PTA (2010)” have to say about what the PTA should do?