The Office of Personnel Management under the Trump administration is requesting that insurance companies provide comprehensive medical records for federal employees and retirees, according to reports.

The agency is asking insurers that provide coverage to federal workers to hand over detailed information about medical visits and pharmacy claims. The scope of the medical data being requested includes information about healthcare utilization patterns among the federal workforce.

The OPM oversees health insurance benefits for approximately 2 million federal employees and an additional 2 million retirees and their family members. The agency manages the Federal Employees Health Benefits Program, one of the largest employer-sponsored health insurance programs in the United States.

The request comes as the new administration begins implementing changes across federal agencies. Details about the specific purpose of the medical records request and how the information would be used have not been publicly disclosed.

Federal employee unions and privacy advocates may raise concerns about the collection of such sensitive personal health information, though the administration has not yet faced formal challenges to the data request.