Guide to categorising your chemical importation and manufacture

• New step : 'Step 0 - Introductions that are in the listed category'
• Added 'Who is this guide for' in 'Before you start categorising your introduction' and removed information covered in step 0.
• Removal: 'Information you need to work out your introduction category' (covered in Step 0)
• Clearer guidance on outcomes and next steps in step 4.1 and 5.1.
• More information in step 4.4 including restrictions on use of animal test data.
• More information in step 5.4 including restrictions on animal test data.
• Replaced references to checking the General Rules with more explanatory text.
• More information about water treatment products and designated kind of release to the environment in the context of working out your environment categorisation volume.

Replaced references to Categorisation Guidelines in step 4.4 and 5.4 with the details (from the Guidelines) about hazard bands; improvements and more information in 'Before you start categorising your introduction'. Added appendices: acceptable test guidelines for categorisation and in silico predictions for categorisation.