The federal government has set aside almost $300 million for the program as part of the economic stimulus plan.
Specifics will vary from state to state, even though some states already have similar programs. State governments have until October 15 to send detailed plans to Washington. The Department of Energy will then review the plans, meaning rebates could be offered in some states as early as November.
The Department of Energy is trying to encourage Americans to buy Energy Star-certified machines.
"Appliances consume a huge amount of our electricity, so there's enormous potential to both save energy and save families money every month," said U.S. Department of Energy Secretary Steven Chu in a statement. "These rebates will help families make the transition to more efficient appliances, making purchases that will directly stimulate the economy and create jobs."