There are three factors that determine whether or not you need to register your substance.

You should look at each of these three factors for every substance you deal with:

• Your role in the supply chain: do you need to register your substance or is it an obligation for another actor in your supply chain?
• Scope and exemptions: does your substance need to be registered or is it exempt from registration?
• Volume: do you reach the one tonne a year threshold?

If even one of these factors does not apply, you do not need to register that substance under REACH.