Washington ? The House on Tuesday approved a “cash for clunkers” bill that aims to boost new auto sales by allowing consumers to turn in their gas-guzzling cars and trucks for vouchers worth up to $4,500 toward more fuel-efficient vehicles.

President Barack Obama has encouraged Congress to approve consumer incentives for new car purchases as part of the government’s work to restructure General Motors and Chrysler. The House approved the bill 298-119.

Supporters pushed for the measure to stimulate car sales and increase the fleet of fuel-efficient vehicles on the nation’s highways. The auto industry has sought the incentives after months of poor auto sales. In May, overall sales were 34 percent lower than a year ago.

“Stimulating sales is the only way to get the auto industry back on its feet,” said Rep. Donald Manzullo, R-Ill.