By Elise Viebeck - 06/21/12 01:36 PM EDT
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.