Get organised with your co-registrants


Organisation of work among co-registrants

If no registration for your substance exists yet, you have to agree with your co-registrants how to work and communicate within your SIEF. This can include hiring a consultant or sharing the workload among SIEF members.

Each SIEF must also select a lead registrant who will submit the lead registration dossier, to enable the co-registrants to submit their member registration dossiers.

Model SIEF agreements have been set up by industry associations. Links to their web pages are available from the Accredited Stakeholders page on ECHA's website.

If the lead registrant registered for the 2010 or 2013 deadlines, it is likely that the preparatory work has already been done. You need to contact the lead registrant and ask to become a member of the joint submission after agreeing on data and cost sharing.

Data sharing

SIEF members must share available scientific data and decide how to fill data gaps. This takes time and has to be done before preparing and submitting the registration dossier. You need to discuss the relevance, reliability and adequacy of the data available. Additionally, you may need to select from overlapping data.

If a registration already exists, you need to negotiate with the existing registrants to get access to the submitted data. However, you might not need access to all the data, but only to the data required for your tonnage band. You might also consider using your own data. This needs to be discussed with your co-registrants.

Cost sharing

Under REACH, the costs of registration need to be shared in a fair, transparent and non-discriminatory way. Data sharing is not designed to generate profit for any party, but to share the actual costs.

SIEF members must reach an agreement on how to share the cost of data and the cost of SIEF administration. Importantly, you only pay for the information and the management of the SIEF that directly relates to your own registration.

You also have the right to know the basis for the costs you pay. Remember that data submitted more than 12 years ago can be used free of charge.

Support from ECHA

As a last resort, if you cannot agree on data and cost sharing with your co-registrants, ECHA can assess your case. This applies to disagreements on performing missing tests as well as disputes on sharing the data and its cost. The data-sharing dispute procedure is free of charge and can be managed without legal support.