Final answer:
The Joint Commission requires unannounced surveys and submission of annual performance reviews for the healthcare organizations it accredits.
Step-by-step explanation:
The accrediting organization that has instituted unannounced surveys and requires submission of annual performance reviews is The Joint Commission. This practice is part of their goal to improve health care for the public, in collaboration with other stakeholders, by evaluating health care organizations and inspiring them to excel in providing safe and effective care of the highest quality and value.
Organizations accredited by The Joint Commission are subject to unannounced surveys at least once every 39 months, with Life Safety Code surveyors visiting once every 12 months. The submission of an annual performance review is also mandatory for these organizations under The Joint Commission's standards.