New pavement construction recommendations include multilayered asphalt pavements designed to provide an extended life. This project will validate current Illinois Department of Transportation mechanistic-empirical design procedures as they apply to the new Extended Life HMA Pavements (ELHMAP). Laboratory testing of field produced mixes for dynamic modulus and fatigue will be conducted. Test sections for the ATLaS test machine will be developed and constructed for response testing during the next fiscal year. Fatigue testing will be conducted to establish the existence of a fatigue endurance limit for asphalt pavements.