Diesel Emissions Inspections


• The Regulation
Society of Automotive Engineers (SAE) J1667, New Jersey Administrative Code 7:27-14 and 7:27B-4


• Effective Date of the Regulation
July 1, 1998 


• Who is Subject to Emissions Testing?
Fleets having a New Jersey registered diesel-powered motor vehicle, with a gross vehicle weight rating of 18,000 pounds or more are subject to this regulation.


• When Should the Vehicle be Tested?
A vehicle must be tested for smoke opacity within 90 days of their month of registration renewal.


• Required Testing Frequency
Annual inspection required.


• The Standards
New Jersey standards require that all heavy duty vehicles powered by a diesel engine and/or operating on New Jersey highways submit to a smoke emissions test. 


• Vehicles with 1991 or newer model-year diesel engines cannot exceed an opacity
  level of more than 40%.

• Vehicles with 1974-1990 model-year diesel engines cannot exceed an opacity level of more than 55%.


• Vehicles with 1974 or older model-year diesel engines cannot exceed an opacity
  level of more than 70%.


• What Are The Penalties for Non-Compliance?Failure to test or submit to test will result in a mandatory $500.00 fine plus court costs.

In addition to fines for non-compliance should your vehicle fail roadside will result in additional fines ranging from $170.00 up to $1,400.00.

National Safety Compliance offers Emission Inspections at your facility seven days a week, hours to accommodate your business schedule.


• How do I get my fleet into compliance and avoid citation?Call National Safety Compliance NOW to talk to a representative on (800) 869-3926 or contact us via our website.


• What is National Safety Compliance's D.E.I. License Number?
Our New Jersey D.E.I. Licence is #000120.