What is the EOC also known as?

The correct answer is "Evidence of coverage." The Evidence of Coverage (EOC) is a vital document that outlines the details of a health insurance plan provided to beneficiaries. It essentially serves as an essential guide that clarifies the benefits, coverage limits, exclusions, and member rights associated with the health plan. The EOC aids members in understanding what services are covered, how to access care, and any cost-sharing responsibilities they have, thus ensuring transparency and informed decision-making.

In contrast, the other options do not convey the same meaning or function as the EOC. "Enrollment overview" suggests a basic summary of the enrollment process but lacks the comprehensive details of benefits and coverage. "Emergency operation certificate" denotes a distinct concept related to emergency management and operations, which is unrelated to health insurance. "Enrollment obligation contract" infers responsibilities related to enrollment but does not accurately reflect the document that details coverage and benefits for members. Thus, the EOC stands out as the most accurate term in the context of health insurance documentation.