An excerpt from TJC's FAQ:
Are competency assessments required for licensed independent
practitioners (LIP's) performing waived testing?
"When a licensed independent practitioner (LIP) performs waived testing that
does not involve an instrument, there is no Joint Commission requirement for
documentation of competency when the test is a logical part of his or her
specialty and the organization has specifically privileged the provider to
perform the test(s). Through the medical staff credentialing process,
individual practitioners may be privileged for those specific waived tests
appropriate to their scope of practice and no further assessment of skills or
documentation of competence is required."
Read more about it from TJC.