New Jersey Truck Emissions & Clean-Truck Rules

How New Jersey handles truck emissions

No roadside emissions test for a passing driver. New Jersey adopted the Advanced Clean Trucks rule (N.J.A.C. 7:27-31), a sales mandate on truck makers, and softened it for model years 2025-2026 with compliance flexibility (Admin. Order 2025-15). One wrinkle: a one-time fleet-reporting requirement covered large fleets running vehicles over 8,500 lb in NJ, but that window has passed. Keep your DPF and DEF intact. Federal anti-tampering fines run about $45,000 per engine.

What applies to you

• Program: ACT adopter
• State rule: Adopted the Advanced Clean Trucks rule (N.J.A.C. 7:27-31), a manufacturer sales mandate on vehicles over 8,500 lb GVWR, with compliance flexibility for model years 2025-2026 (Administrative Order 2025-15, issued June 25, 2025 and later extended to MY2026). A separate one-time fleet-reporting requirement covered large entities operating vehicles over 8,500 lb in NJ, and that reporting window has closed. No periodic heavy-truck emissions inspection binds a driver. Federal EPA standards otherwise apply.
• Penalty: No state emissions fine binds an out-of-state driver; ACT non-compliance penalties fall on manufacturers. Federal EPA anti-tampering penalties apply: about $45,000 per tampered engine and about $4,500 per defeat device sold or installed.
• DPF / DEF: Federal EPA equipment nationwide, never delete or tamper with it

More for New Jersey