New York Truck Emissions & Clean-Truck Rules
New York checks your smoke, and your plate does not matter. Any diesel over 8,500 lb GVWR operating in the state has to stay under 40 percent opacity, or 20 percent for engines 1997 and newer at a certified station (6 NYCRR 217-5.3, 217-5.4). Roadside and random opacity inspections run at locations designated by the state DOT, and a violation costs $700 the first time and $1,300 the second, cut to $150 and $500 if you repair and pass a reinspection within 30 days (6 NYCRR 217-5.7). A truck registered in the New York City metro area also needs an annual opacity test. The Advanced Clean Trucks rule (6 NYCRR Subpart 218-4) binds manufacturers, not you. Keep the DPF and DEF/SCR working; deleting emissions gear risks about $45,000 per engine under federal law.
How New York handles truck emissions
New York checks your smoke, and your plate does not matter. Any diesel over 8,500 lb GVWR operating in the state has to stay under 40 percent opacity, or 20 percent for engines 1997 and newer at a certified station (6 NYCRR 217-5.3, 217-5.4). Roadside and random opacity inspections run at locations designated by the state DOT, and a violation costs $700 the first time and $1,300 the second, cut to $150 and $500 if you repair and pass a reinspection within 30 days (6 NYCRR 217-5.7). A truck registered in the New York City metro area also needs an annual opacity test. The Advanced Clean Trucks rule (6 NYCRR Subpart 218-4) binds manufacturers, not you. Keep the DPF and DEF/SCR working; deleting emissions gear risks about $45,000 per engine under federal law.
What applies to you
- Program: Clean Truck Check
- State rule: 40 percent opacity is your limit in New York on any diesel over 8,500 lb GVWR operating in the state, out-of-state plates included (6 NYCRR 217-5.3, 217-5.4). At DEC and DMV certified inspection stations the revised cutpoints apply: 20 percent for engines 1997 and newer, 30 percent for 1991 to 1996, 40 percent for 1990 and older. All heavy-duty diesels operating in New York along public highways and quasi-public locations are subject to roadside or random emissions inspection (6 NYCRR 217-5.2, 217-5.7). A truck registered in the New York City metropolitan area must also pass an annual opacity inspection. New York separately adopted Advanced Clean Trucks (6 NYCRR Subpart 218-4), a sales mandate on manufacturers, and DEC issued an enforcement discretion letter (May 23, 2025) waiving penalties for model years 2025 and 2026.
- Penalty: $700 for a first opacity or tampering violation and $1,300 for a second, dropping to $150 and $500 if you repair, pass a reinspection at a DMV ODEIS within 30 days of the summons, and give the court proof (6 NYCRR 217-5.7). That reaches any heavy diesel operated in New York, whatever the plate. ACT non-compliance penalties fall on manufacturers, not truckers. 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
New York Emissions FAQ
Does New York have a truck emissions program?
What is the emissions rule for trucks in New York?
What is the penalty for an emissions violation in New York?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://dec.ny.gov/environmental-protection/air-quality/controlling-motor-vehicle-pollution/heavy-duty-vehicles. See our Terms & Disclaimer.
More for New York
Check New York before you roll
Live weather, closures, and hazards on one map. Free, no account.
Open Live Map →