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Classification of hazardous waste

HazWasteOnline™ is web-based software for classifying hazardous waste. The software follows the latest Environment Agency guidance and European regulations and lets the user focus on what is in the waste and not how to do the calculations or keep up with the changing data.

HazWasteOnline™ provides waste producers, consultants, carriers and waste receivers with a simple, accurate and auditable tool for the classification of potentially hazardous and hazardous waste materials such as contaminated soils, filter cakes, sludge residues and wastes from organic processes.

HazWasteOnline: Example of a classification report for a hazardous soil

Click here to download an example of a classification report for a contaminated soil.

Click here to check out the main features.


Although the waste producer has the legal responsibility to classify any waste they produce, most classifications in the UK are done by the waste receivers.

  • Incorrect classification can drastically increase disposal/transportion costs,
  • It can potentially breach legislation, and
  • Having a transparent and defensible audit trail reduces a company's risks.

While the cost for non-hazardous waste disposal in landfill may be between £25 and £100/tonne (including Landfill Tax), the cost for hazardous waste disposal can be many hundreds of pounds/tonne higher. This isn't just due to 1) the charge for the waste disposal itself but also to 2) landfill tax of £80/tonne and 3) the relatively small number of hazardous landfills left in the UK (hence transportation costs can become very significant).

HazWasteOnline™ contains all 20 EWC chapters and all 4000 plus substances from Table 3.1 / 3.2 of Annex VI of Regulation 1272/2008 on the Classification, labelling and packaging of substances and mixtures (CLP). The Professional Edition lets the user define other waste stream and substance lists such as ones for a filter cake, a sludge or site X. It lets you analyse tens or hundreds of samples at a time and includes a function to cut-n-paste data from laboratory spreadsheets.

Hazardous Waste Classification tool

HazWasteOnline™ is an on-line web tool that allows subscribers to:

  • Utilise a default waste stream template suitable for contaminated soils
  • Create customised waste stream templates with different substances, default species and EWC chapter
  • Add their own substances
  • Use the cut-n-paste function to quickly transfer laboratory results from spreadsheets
  • Classify one, ten or hundreds of samples at a time
  • Re-run the classification based on new information or assumptions
  • See which substances are causing the hazardous classification
  • Ignore a hazard property or substance (but document why)
  • Detailed PDF classification reports

HazWasteOnline™ allows users to code and classify waste as defined in the EWC (European Waste Catalogue 2002) based on EC Regulation 1272/2008 on the Classification, labelling and packaging of substances and mixtures (CLP) and latest Environment Agency guidance (WM3). The system comprises an analysis and reporting web front-end, a calculation engine to model the regulations and a database to save the contaminants inputted and reports generated. The system is fully auditable and is maintained by us to reflect the latest changes in EC regulations and Environment Agency guidance.


Watch our training videos to learn how to use HazWasteOnline™ to classify your waste streams.


7th & 8th December 2016    Venue: Reading, UK

15th & 16th March 2017   Venue: Warrington, UK

18th & 19th April 2017 Venue: Dublin, Ireland

Click here for more details and the Booking Form

Day 1: Hazardous Waste Classification

This course covers the waste regulations, agency guidance, waste classification using the chemical analysis of the waste including practical exercises and the use of HazWasteOnline™. The courses will be working with the new hazard classes, categories, statement codes and the new WM3 classification engine to bring delegates up to speed with the big changes that came in on 1st June 2015. It also discusses where WAC, sampling methodology and the CL:AIRE code of practice fit into waste classification. Attendees include waste producers, waste management companies, regulators and consultants.

Day 2: Advanced Waste Classification    

This advanced course covers basic chemistry, physical properties, choice of both appropriate substances and species for metals, use of the C&L Inventory database and IARC Monographs for researching substances not in the CLP, Hazard Statement codes, which species to use, incomplete CLP entries, in depth examination of oils and PAH's, choice and meaning of different lab test suites and includes practical exercises.


25 May 2015 - WM3 classification engine published

Following the publication of the Technical Guidance WM3 last week, we are pleased to release our new WM3 classification engine for use by our customers.

4 March 2015 - Beta version WM3 classification engine released.

1 December 2014 - Italian language interface and classification engine (Beta) published for Italian customers.

Both the user interface and reports can now be rendered and published in the Italian language. This complements a new Italian classification engine that follows the ARPA Venice guidance document PG11DT for waste classification.

26 November 2014 - Data from Table 3.1 added to the database (Hazard Statement codes)

Ahead of the major changes coming in on 1st June 2015, we have collated and published the data from CLP Annex VI, Table 3.1, ATPs 1 through 6 and the other corrigenda publications for users to view in advance of the June 2015 changes.

10 October 2014 - Data updated by ATP 6

8 September 2014 - Barcodes added to all classfication reports

Subscribers to the Professional & Packages Edition will shortly be able to use their smartphones to scan the barcode and load the data from paper classification reports into their projects.

16 July 2014 - Support for liquid wastes added

Addition of liquid units means liquid wastes can now be assessed.

20 May 2014 - Irish EPA accept HazWasteOnline reports

The Irish EPA announce that they will accept HazwasteOnline submissions from waste producers - Download letter

30 April 2014 - List of wastes (EWC) codes reviewed

19 February 2014 - Support for European number format added

10 December 2013 - Data updated by ATP 4 and ATP 5

12 August 2013 - WM2 v3 classification engine released

following release of new Environment Agency guidance earlier this month.

25 Mar 2013 - Moisture Correction added

5 September 2012 - Irish classification engine released

12 June 2012 - Package Viewer

Professional Edition users can now invite any other party (including non subscribers*) to view their waste classification, laboratory data and supporting documentation using the new Package Viewer and messaging tools.

  • These tools allow users to easily share classifications with other parties, such as a waste management company, consultant, broker or haulier,
  • remove the need for the party(s) to have to re-enter the data,
  • get rid of emails with large attachments,
  • record messages sent between the parties, and
  • improve efficiency, quality and auditability

We have released the first version of our Professional & Packages Edition allows waste management companies, project managers and agencies to better manage and analyse waste classification packages sent to them by waste producers or their agents.

This is a major step forward in our strategy to streamline the transfer of data between parties and helping to create a more efficient waste pipeline.

Please click here for more information.

* Non-subscribers and other Professional Edition users will have a 24 hour window in which they can review the data and ask questions using the messaging feature.