The U.S. Supreme Court agreed on Friday to decide the legality of a key component of the Affordable Care Act that effectively gives a task force established under the landmark healthcare law known as Obamacare the ability to require that insurers cover preventive medical care services at no cost to patients.

At issue is a provision requiring health-care plans to cover no-cost preventive care, including cancer screenings, immunizations and contraception. A Christian-owned business has challenged it.