The government’s Cash for Clunkers program has left some auto salvage yard owners angry and confused.

They said it could cut back the supply of used cars and used car parts.

"I thought I was going to buy every car from every dealer around here, and somebody’s not giving me the information that I need,” said Marty Cope, owner of Stillwater’s 108 Auto and Truck Salvage.

Cope said he buys about 300 cars a month, supplying him with motors, transmissions and body parts to sell. He said all he understands about the Cash for Clunkers program is that the old cars being traded have to be destroyed, making good used parts even harder to find.

"I’ve got to crush those cars,” he said. Cope has more than 6,000 cars in the yard that need to be crushed.

According to cars.gov, the government’s official Web site on the CARS Act, the program requires trade-in vehicles be crushed or shredded so they will not be resold for use in the U.S. or elsewhere. Those responsible for crushing or shredding vehicles can sell some parts, but those parts cannot include the engine or drive train.

Tim Huskey, owner of Cars and Parts by Tim Inc. in Guthrie, is outraged over the federal program.

"This doesn’t make smart recycling sense, adding more cars to be crushed,” he said. "This is taking away from a man who needs to buy an engine for an older car that he can now get for around $700 and installed for another $500.”

To be eligible for the Cash for Clunkers program, a trade-in vehicle must have been manufactured less than 25 years before the date of the trade-in, must have a combined city/highway fuel economy of 18 miles per gallon or less, must be in drivable condition and have been continuously insured and registered to the same owner for a full year preceding the trade.