Idling — Visible Black Smoke or Exhaust (Separate Violation)

A motor vehicle emitting visible exhaust (smoke of any color) for more than ten consecutive seconds while idling or moving is in violation of NYC air quality rules, independent of the three-minute idling limit. This commonly applies to older diesel trucks and buses.

• visible black smoke plume from exhaust of a stationary or moving truck
• dark exhaust cloud from a diesel vehicle lasting many seconds
• soot or smoke visibly discoloring the air behind an idling commercial vehicle
• white or blue smoke from a vehicle's exhaust persisting beyond startup

1. Video the vehicle idling for more than three minutes (non-commercial) or one minute (school zone).
2. Capture plate and location; DEP enforces idling limits.
3. File at 311 or via DEP idling complaint channels.

Official channel: portal.311.nyc.gov or dial 311. Agency: NYC DEP.

DEP idling fines start at $350 for first offense, higher for commercial vehicles and repeat offenders.

DEP enforcement agents may respond; NYPD can also summons idling. School zone violations are prioritized.

• Idling trucks