Obama administration touts health law an hour before possible ruling

Health and Human Services (HHS) Secretary Kathleen SebeliusKathleen SebeliusKansas Senate race splits wide open without Pompeo Is a presidential appointment worth the risk? New Dem Kansas gov reinstates protections for LGBT state employees MORE said Thursday morning that 12.8 million Americans will receive $1.1 billion in rebates from insurers this summer as a result of the law. This will average about $151 per insured family, the agency estimated.

The rebates will stem from the law's medical loss ratio, which mandates that insurers spend roughly 80 percent of all premiums on healthcare rather than marketing, executive bonuses or other administrative costs.

"The 80/20 rule helps ensure consumers get fair value for their healthcare dollar," Sebelius said in a statement.

Materials from HHS said that consumers will likely see a rebate check in the mail, a lump sum reimbursement to the account they use to pay premiums or a reduction in their future payments. Insurers must issue checks by Aug. 1, unless the law is struck down in the next two weeks. 

—This post was updated at 10:45 a.m.