Palette stack (IMAGE) Penn State Caption Approximately 400 million new wooden pallets like these are produced in the United States every year. They should not be used used in consumer-facing retail locations where unintentional contact could occur, says Judd Michael, Penn State Nationwide Insurance Professor of Agricultural Safety and Health. Credit Charles Ray, Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.