Certification Fees for New 2026 Model Year (MY) Light-Duty Vehicle Test Groups, Medium-Duty Vehicle Test Groups, Heavy-Duty Engine Families, Medium-Duty Engine Families, Heavy-Duty Vehicle Evaporative Emissions Families, Incomplete Medium-Duty Vehicle Evaporative Emissions Families, Heavy-Duty Greenhouse Gas Vehicle Families and Trailer Families, Street-use Motorcycle Families and Motorcycle Engine Families, On-Road Heavy-Duty Exempt Engines and Certification Fees for New 2025 Calendar Year (CY) Zero-Emission Powertrain Families, Aerodynamic Technologies, and Fuel-Fired Heaters