As the 1st of December 2008 deadline for general pre-registration has already passed, the only pre-registration function now available is for late pre-registration.
For a substance to be eligible for late pre-registration the substance must be what is known as a 'phase-in' substance. This means that:
In addition, it must be the first time that the substance has been imported or manufactured in quantities of one tonne per year or more by the legal entity in question. The pre-registration needs to be done within 6 months of the first import/manufacture and no later than 12 months prior to the appropriate registration deadline. This that any further pre-registrations need to be submitted by 31 may 2017 and can only cover supply at less that 100 tonnes per year.
Pre-registration will mean informing the European Chemicals Agency (ECHA) of:
You can do this by going to the IT portal accessible via the ECHA website. This will take you through the pre-registration process.
Once pre-registered the European Chemicals Agency put the late pre-registrant in contact with other pre-registrants of the substance. These will already be members of a 'Substance Information Exchange Forum' (SIEF) where they can negotiate sharing their available data and the costs of generating any new data required for registration. Further details on this can be found in the ECHA guidance on data sharing.