Diesel Power

Emission Regulations

Good to know about emission steps and transitional rules

In recent years, the development of industrial engines has primarily been driven by tougher emission regulations. The rules that apply within the EU have gradually been harmonized with the North American emission rules set by the US EPA (Environmental Protection Agency).

New standards, new opportunities

In the shift from one environmental step to the next, transition rules apply for machine manufacturers in order to facilitate the process. These rules are often complex and can be hard to comprehend, but at the same time offer good opportunities if used correctly. Feel free to ask us at Diesel Power if you have any questions about this!

Proven technology

John Deere’s emissions control system features the same main components that were used in vehicles cleared to operate in the so-called low-emission zones of Gothenburg, Stockholm and Malmö in Sweden in the late 1990s. Today, this technology has proven its ability to measure up even in the toughest applications.

Read more about emission regulations and the technology chosen by John Deere:


More information:

EU Commission’s website for “Emissions from non-road mobile machinery” EPA’s website for “Non-road Diesel Engines”
EPA’s website for “Non-road Diesel Engines” “Nonroad Diesel Engines”
Diesel Net, information about Stage V

Useful link from Diesel Net:

How to read engine plates

All engines manufactured in accordance with EU Directive 97/68 / EC on emissions from internal combustion engines must be labelled with certain information. The marking must be durable, and is often printed, stamped or engraved on an engine plate. The engine marking should include the name of the engine manufacturer and the type approval number.

The engine plate should present a code corresponding to the EU emission stage. The code in turn tells us how much pollution the engine generates.


Engine plate location

Engine plates can be hard to locate and difficult to access. Before you start looking, make sure all equipment is turned off, isolated and thoroughly cooled! Apply parking brakes or safety locks and remove any manoeuvres attached.The marking must be locatable when the engine is installed in the machine, and it should not be obstructed from view by access protection devices. If the engine plate is not visible on the engine, there should be a duplicate at an alternate visible location, for example in the cab or inside the engine hood.


Interpreting the engine plate

There is a key figure in the type approval number that states the emission level for which the engine was manufactured. There is a second digit that can be used as an indication of whether the engine is type approved for variable or constant speed operation. This second figure is significant since constant speed engine control in the EU currently is limited to Stage IIIA (phase IIIB and constant speed IV engines do not exist). Note that stage IV does not exist for any NRMM engines <56 kW. In this case, emission control in the EU is limited to Stage IIIB.

In the example below, the letters PA mean that it is a variable speed IIIB 130 560 kW motor. This is consistent with the September 1, 2015 GLA NRMM requirements for all zones, and meets the requirements of 01 September 2020 GLA NRMM all zones, except the Central Activity Zone and Canary Wharf.

You can then use the first letter to identify the engine’s emission level:

EU emission steps

A-C EU Stage I
D-G EU Stage II
Q-R EU Stage IV


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