Engine Emissions - Today and Tomorrow
Where should Contractors Start on Emissions Compliance?
Emission regulations ... answers to emissions questions ... diesel particulate filter retro fits ... One of today's greatest challenges for you, a contractor, is keeping pace with constant changes. You've heard about emissions and emission compliance. You've heard about tier 2, tier 3 and tier 4 engines. And if you're like everyone else, you might be scratching your head and wonder how it's going to affect you, and what you'll have to do to comply.
Emissions regulations are a complex and dynamic subject. Today's regulations have their roots in the Clean Air Act of 1970, one of the most significant environmental law in U.S. History. The Clean Air Act creates sweeping laws to reduce and control air pollution. In an effort to reduce and control particulate matter (PM, known as "soot") and nitrogen oxides emissions (NOx), the Clean Air Act required the EPA, among other things, to establish and enforce progressively more stringent emissions requirements for all new off-road diesel engines starting in 1996. These emissions requirements are know as the "Tier" emissions standards.
Non-road emissions reductions:
- Tier 3/Stage III A emissions regulations required a 40 percent reduction in NOx compared to Tier 2/Stage II.
- Interim Tier 4/Stage III B regulations require a 90 percent reduction in PM along with a 50 percent drop in NOx compared to Tier 3/Stage III A.
- Interim Tier 4/Stage III B and Final Tier 4/Stage IV must pass additional emissions tests including the steady-state 8-mode test (ISO 8178) and the rigorous nonroad transient cycle (NRTC) test.
- Final Tier 4/Stage IV regulations, which will be fully implemented by 2015, will maintain levels of PM and require an additional 80% reduction in Nox compared to Interim Tier 4/Stage III B.
Interim Tier 4 (IT4)
We're now in the Tier 3 and Interim Tier 4 (IT4) period, which requires a significant reduction in PM and NOx emissions. Interim Tier 4 standards begin phasing-in during 2013. So what should you do first? Contact Honnen Equipment today for an assessment, which will help you determine local and/or state emission requirements for your existing equipment or fleet and what strategies might be right for your particular location, equipment and applications.
John Deere engines are the right solution for Interim Tier 4
By choosing EGR first, John Deere proved we could meet the near-zero levels of Interim Tier 4/Stage III B emissions regulations for off-highway equipment with diesel engines without the cost and inconvenience of SCR. Our approach uses cooled exhaust gas recirculation (EGR) for NOx reduction and an integrated exhaust filter for particulate matter (PM) reduction. It is simple to install, operate, and maintain while delivering the power, fuel efficiency, reliability, and low cost of ownership you've come to expect from John Deere.
To learn more about Engine Emissions, view some of the documentation below:
View the Clean Air Act of 1970 website>>
View the JD Interim Tier 4 brochure>>
View the JD Interim Tier 4 selection guide>>
View the frequently asked questions>>
Customer specific information: John Deere Construction & Forestry
Press release>>: Announcing John Deere's first certified Interim Tier 4-9.0L off-highway engine
Press release>>: Announcing John Deere's complete Interim Tier 4 engine line-up
John Deere offers customer training to learn more about Tier 4 and Engine Emissions.