Specifications include, but are not limited to: 1. EPA emission standards with On-Board Diagnostics. 2. Engine oil must adhere to current API oil specifications for factory fill, must be CK4 compliant and not FA4 compliant, No exceptions. 3. 2019 Cabover/Flat Nose Style Chassis with a front or rear mounted engine. 4. 276” Wheelbase or equivalent. 5. Must Have Cummins 6.7 liter electronic in-line 6 cylinder turbo charged diesel engine with a Cummins regeneration system. 6. Engine to be 250 horsepower minimum-specify horsepower. 7. Engine torque to be a minimum of 660 ft. lbs. 8. Fan Clutch – Warner (or equivalent) electrically activated and control fan drive (Please specify brand). 9. Allison Electronic Series 2500PTS, 5th Generation controls, automatic transmission with over drive.