Kroger, the country’s biggest traditional grocery chain, is ending some benefits for unvaccinated workers as big employers attempt to compel more of their workforce to become vaccinated with cases of COVID-19 again rising.

Unvaccinated workers will no longer be eligible to receive up to two weeks paid emergency leave if they become infected, a company spokesperson confirmed Tuesday. That policy was put into place last year when vaccines were unavailable.

The Cincinnati company confirmed changes in benefits first reported by The Wall Street Journal. The change is effective Jan. 1.

The company said it will also begin charging a $50 monthly fee to unvaccinated salaried workers and managers who are enrolled in a company health care plan. Unionized workers and non-union hourly workers won’t be charged that fee.

Kroger has nearly 500,000 employees in the U.S.; 66% belong to a union. The company won’t say what percent of its workers are vaccinated.

The White House made it clear Tuesday that Kroger’s policy — including the $50 monthly charge — is not one the federal government is promoting. President Joe Biden backs a vaccine mandate at large companies, but that plan is facing legal opposition. In the meantime, many companies are still trying to get as many of their employees vaccinated as possible.

“We know different private sector companies and entities are going to take different steps to incentivize people to get vaccinated, to keep their employees safe and their work force safe,” White House press secretary Jen Psaki said at her briefing Tuesday. “It’s not a policy we’re putting out there from the federal government.”

Kroger said it will still offer various leave options for employees who contract the virus, including earned paid time off and the ability to apply for unpaid leave. What Kroger called a “special” leave will only remain available to fully vaccinated associates.

Early last year Kroger implemented emergency leave that allowed paid time off for any worker diagnosed with COVID-19. All employees were eligible to receive their standard pay for up to 14 days.

As Kroger modifies some of its policies, the company said that it will continue to encourage workers to get vaccinated with $100 payments given to all fully vaccinated employees.

Kroger employees interact with as many as 9 million customers daily. Asked whether the new policy might encourage some employees to come to work even if they’re sick, a Kroger spokesperson said the company continues to implement enhanced cleaning and physical distancing and requires employees to wear masks in all of its stores and offices, regardless of vaccination status.

Kroger is not the first company to steer clear of an outright mandate, instead trying to coerce employees through company-sponsored health plans.