WASHINGTON, Oct. 18 -- The American College of Occupational and Environmental Medicine (ACOEM), Elk Grove Village, Illinois, has submitted a public comment letter to the U.S. Department of Transportation (DOT) expressing its support for proposed changes to the drug testing panel, including the addition of fentanyl. The proposed changes are part of a Notice of Proposed Rulemaking (NPRM) that addresses harmonization with the Department of Health and Human Services (HHS) guidelines and introduces t more ST