how does it operate?
All member health care organizations are subject to a three-year accreditation cycle, and laboratories are surveyed every two years. The unannounced full survey is a key component of The Joint Commission accreditation process.
Joint Commission
All member health care organizations are subject to a three-year accreditation cycle, and laboratories are surveyed every two years. The organization does not make its hospital survey findings public. However, it does provide the organization's accreditation decision, the date that accreditation was awarded, and any standards that were cited for improvement. Organizations deemed to be in compliance with all or most of the applicable standards are awarded the decision of Accreditation.

The unannounced full survey is a key component of The Joint Commission accreditation process. 
who is the actor who played black panther Chadwick Aaron Boseman. who is he? He was an American actor. where was he born? Anderson, South Carolina. what is the geographical significance of this place? It is located in the northwest corner of South Carolina on the Piedmont plateau. is there any college/s located here? Yes, the Anderson College which later became the Anderson University. what are some hospitals located here? AnMed Health Medical Center. what is the historical record behind it? Virginia "Jennie" Gilmer is widely recognized as the founder of the Anderson County Hospital, which later became AnMed Health. does it have accreditation? Yes, by the Joint Commission. what is this? It is a United States-based nonprofit tax-exempt 501(c) organization that accredits more than 22,000 US health care organizations and programs.
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Joint Commission [SEP] Operation
Surveys occur 18 to 39 months after the organization's previous unannounced survey. There has been criticism in the past within the U.S. about how the Joint Commission operates. The Commission's practice had been to notify hospitals in advance of the timing of inspections. A 2005 article in the "Washington Post" noted that about 99% of inspected hospitals are accredited, and serious problems in the delivery of care are sometimes overlooked or missed. Similar concerns have been expressed by the "Boston Globe" who stated "The Joint Commission, whose governing board has long been dominated by representatives of the industries it inspects, has been the target of criticism about the validity of its evaluations." The Joint Commission over time has responded to these criticisms.