LANSING, Mich. (AP) — Gov. Rick Snyder says the Obama administration has signed sign off on Michigan's plan to expand Medicaid to 322,000 more low-income residents of the state.

Snyder announced Monday night that Michigan received a waiver of certain provisions of the federal health care law. The state sought the waiver in November.

The approval means that Michigan can extend Medicaid eligibility to people making up to 133 percent of the federal poverty level.

The Republican governor signed a measure in September to establish individual health savings accounts for adult recipients and require them to pay up to 5 percent of their annual income toward the government health insurance program that Michigan runs through managed-care plans.

Monthly premiums and copays can be reduced if participants engage in certain healthy behaviors.