Final answer:
The American Hospital Association (AHA) sets voluntary standards for hospitals, representing a variety of health care entities and providing important educational resources and information.
Step-by-step explanation:
The organization that sets certain voluntary standards for hospitals is the American Hospital Association (AHA). The AHA is a national organization that represents and serves all types of hospitals, health care networks, and their patients and communities. It provides education for health care leaders and is a source of information on health care issues and trends.