Data entry

General Notes

This form is for adding entries into the NRMM register. This form is only available if you are logged in. If you do not have an account you can get one by filling in this form. If you have forgotten your password you can reset it.

All entries are for the current user, which should be the Site Name. This is shown as the first entry on the form, and if this is not correct you should log out and then log in with the correct account.

Some fields must be filled in, and these are marked with an asterix(*). Each entry added to the register is analysed for errors, inconsistencies or missing information, and a status is generated. These entries can be viewed by officers from the GLA or local authorities, who will use the data when assessing compliance.

Fields in detail


The first fields are the Deployment Start Date, Deployment End Date and Deployment Duration. Ideally these should be filled out as equipment arrives to ensure it remains accurate, and the system will not let you set a date too far in the past or future. It is possible to edit these later if the date or duration changes. The duration is in actual days not working days e.g. include weekends etc even if the machine will not be used on those days.

Machinery Details

The Machinery Type has a common list of terms that is preferred, but you can select "Other" and then fill in a free format entry.

The Machinery Manufacturer also has a common list of terms that is preferred, but you can select "œOther" and then fill in a free format entry.

Engine Details

The Engine Manufacture Year is limited so it cannot be in the future, and should be year of the engine manufacture, not the year of vehicle manufacture which can be different. If you are unsure then the engine plate should provide this.

The Engine Power is recorded in kW (Kilowatts). An entry is flagged if the EU type approval number contradicts this entry.

The Plant ID is an entry for use by the site so they can keep track of which NRMM has been entered onto the system, this will also be used by inspecting officers when they are checking the register against what is on site. It should be something that uniquely identifies the engine, and also is easy to find. It might be the license plate for road going NRMM, or the engine serial number (although this can be hard to find), or an internal asset number or name. Use of this field will help users understand what they have and have not entered, and will also make it easier to show compliance to the NRMM LEZ when a site is inspected.

The Engine EU Type Approval Number is found on the engine plate (see how to read engine plates), and is the only reliable definition of which stage the engine complies with. Please fill this in without spaces, and the existing one should act as a guide. Occasionally the engine number will have been incorrectly printed, or an engine may not have one e.g. it is an agricultural machine. The system will accept whatever you enter here, but entries that do not appear to be valid will be flagged.

The EU Engine Emission Stage is the key field for this data entry, and should normally be obtained from the engine plate (see how to read engine plates) or from the owners’ documentation for the machine. There may be occasions where the EU Type approval number is unavailable, or does not reflect the actual stage of the NRMM in these cases inspecting officers may need to see other evidence of the engines emission stage, such as the owner’s documentation. Any entry that does not match the EU Type Approval number will be flagged. Using retrofit equipment does not change the engine emissions stage.


The Retrofit Type shows if the engine has retrofit equipment to reduce its emissions and change its effective stage. If the NRMM has been retrofitted then please select which type, and then fill in details for Retrofit Company, Retrofit Date, Retrofit Details and Retrofit Approver.

In order to comply with the NRMM standards retrofit must be on the EST approved list. If you are using retrofit equipment you will still need to apply for an exemption. Exemptions where approved retrofit is used will normally be approved without the need to provide additional information.


If you add NRMM that does not meet the required emissions standard then the only way to comply is to get an exemption. Currently the standard is stage IIIB for the Central Activity Zone and Canary Wharf, and stage IIIA for the rest of Greater London. There are a few items of NRMM that have an automatic exemption, but most do not. If you have to request an exemption then you will be shown an Exemption Request field which should be filled in with details of your exemption request. This will change the Exemption Status to "Pending". A decision will then be made, and you will receive an email showing your request to either be accepted or rejected.

Rejected equipment must be removed from site within 5 days and should not be used in the interim.

Adding to register

The last field is the Entry Status that cannot be manually entered. Instead this is automatically generated based on the other data entered. This may show "Warning" if the record has some inconsistancies, often caused by a problem with the Engine EU type approval number.

Once the data is correct you should press Submit, which will enter the data and display a conformation message.

What to do next

After you have entered information into the NRMM you should receive an email detailing what has been entered for your records. Once logged in you can review everything you have entered and can use these forms to edit your entries e.g. new equipment arrives, or equipment leaves early.

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