Registration Process

Manufacturers and importers of substances at one tonne per year or more must collect information on the properties of those substances and communicate this information to ECHA through a registration dossier. The first step for registering a substance with ECHA is to submit an inquiry. After successful inquiry you will be required to prepare and submit a registration to ECHA, either jointly or individually. A registration must be within a joint submission when the same substance is manufactured or placed on the market by more than one company. Further information on registering your substance, either individually or jointly, can be found on this page.




Preparing and submitting an inquiry

Before registering, you have a duty to prepare and submit an inquiry to ECHA. The inquiry process will take place before manufacturing or placing on the market.

You must also inform ECHA of the additional information you require to update your registration due to a tonnage band increase.

After processing an inquiry, ECHA facilitates the contact between you and the previous and/or other potential registrants to enable data sharing and joint submission.

Preparing an inquiry dossier with IUCLID

  1. Create the dossier with the latest version of IUCLID.
  2. Use the IUCLID Validation Assistant plug-in to detect any missing information and pre-check certain 'Business Rules'.
  3. Submit your inquiry dossier through REACH-IT.

For further information, please see Manual: How to prepare an inquiry dossier.


Preparing and submitting a joint submission

A joint submission will consist of two or more potential registrants who manufacture or place on the market the same substance. To prepare for a joint submission, potential registrants have a duty to form a Substance Information Exchange Forum (SIEF) to share data on the intrinsic properties of the substance they intend to jointly submit to ECHA and agree if possible, on the classification and labelling of the substance.

It is up to the potential registrants to decide on the lead registrant, who will submit their registration well before the registration deadline. Members of the same joint submission will also submit registrations, but only after the lead registrant's dossier has passed the business rules verification step in REACH-IT in the submission process.

When ECHA has fully processed the lead registrant's dossier and confirmed the payment of the relevant registration fee, the lead registrant will receive a registration number. Member registrants will separately receive their registration numbers when the member dossiers are considered complete by ECHA.


Registering your substance

Potential registrants of substances (at one tonne or more per year), are required to prepare and submit a registration dossier to ECHA. Please note that you need to keep your registration dossiers up to date whenever relevant information is available to your company.

A dossier can be prepared using the latest version of IUCLID and submitted through REACH-IT. However, if you are a joint submission member (not the lead registrant), you can prepare your registration online directly in REACH-IT.

Preparing and submitting a dossier

  1. Read the Manual: How to prepare registration and PPORD dossiers.
  2. Enter the required information in IUCLID to complete your substance dataset.
  3. You can use the Chesar tool to carry out your chemical safety assessment and generate your chemical safety report (CSR), if relevant.
  4. When your substance dataset is complete, create the final registration dossier following the Dossier Creation wizard in IUCLID.
  5. Use the IUCLID Validation Assistant plug-in to detect any missing information and pre-check certain ‘Business Rules'.
  6. Use the IUCLID dissemination  preview plug-in to see what information from your dossier will be published by ECHA.
  7. Apply the IUCLID fee calculator plug-in to estimate the fee associated with your registration.
  8. Export the dossier from IUCLID and submit it via REACH-IT.