Which of the following is NOT a function of a health insurance exchange under the Affordable Care Act (ACA)?

A health insurance exchange under the Affordable Care Act (ACA) serves several essential functions designed to facilitate access to health insurance for individuals and small businesses. One of the primary roles of a health insurance exchange is to certify qualified health plans. This means they review and determine which health insurance plans meet the specific criteria set by the ACA before allowing them to be offered on the exchange.

Another key function is resolving applicant discrepancies. This involves ensuring that the information provided by applicants is accurate and complete, which is necessary for determining eligibility for subsidies and enrollment in appropriate health plans.

Evaluating health plan options for consumers is also a critical component of an exchange's responsibilities. Exchanges provide a platform where consumers can easily compare different health plans based on factors such as coverage options and costs, helping them make informed decisions.

Contacting employers for coverage changes, however, is not a standard function of health insurance exchanges. While exchanges are involved in health plan administration and consumer enrollment, the direct communication with employers regarding coverage changes does not fall within their primary activities. Instead, employers typically manage their own health plan offerings and communicate changes directly to employees, independent of the exchange's operations.