1. Each unit shall be a new model. No discontinued models will be accepted. 2. 2026 Freightliner 114SD Conventional Cab Chassis, or approved equal. 3. Each unit shall be equipped with a Cummins L9N CNG engine, 320HP @ 2000RPM, 1000LB/FT @ 1300RPM, or approved equal. 4. Set Back Axle. 5. Each unit shall be equipped with an Allison 3000 RDS Automatic Transmission with PTO Provision, or approved equal. 6. Each unit shall be equipped with a Detroit DA-F-16.0-5 16,000lb Drop Single Front Axle, or approved equal. 7. Each unit shall be equipped with a 16,000lb. Taper leaf Front Suspension. 8. Each unit shall be equipped with a Meritor RS-23-160 23,000lb. T-Series Single Rear Axle, or approved equal. 9. Each unit shall be equipped with a 23,000lb. Flat Leaf Spring Rear Suspension with Helper and Radius Rod. 10.Each unit shall be equipped with a 114 inch BBC flat room aluminum conventional cab.