Substance identity adaptation service

You should use this webform if you want to request a change to the chemical identifiers of a registered substance.

The information you submit with this request is assessed by ECHA. If the Agency considers that the service can be provided, it will issue a service charge to each affected registrant.

Please fill in the following fields. Compulsory fields are marked with an asterisk (*). Please also attach a "Joint Submission Plan" (JSP) and documentary evidence that all the co-registrants agree with the adaptations specified in the JSP (if applicable) and they commit to update their dossier by the deadline set by ECHA. You can download a JSP template (Microsoft Excel document) from this link. The template can be used for both joint submissions and individual submissions. Please read carefully the instructions included. When done, click the Submit to ECHA button below.

Important notes:
  • In order for ECHA to process your request, you must be able to demonstrate that the substance identity information included in the original dossier (such as a spectroscopic fingerprint, a chromatographic fingerprint, the manufacturing process description or any statement made in the dossier) demonstrates that the substance with new identifiers was intended to be covered in the original dossier.
  • ECHA cannot process a request when a REACH or CLP process (such as evaluation) is ongoing.

Maximum file size is 10 MB
Maximum file size is 10 MB

If you would like to submit more than one document, please create a zip archive where you include all files and upload the zip file as attachment. Maximum file size is 10 MB.

In case you encounter problems related to the web-form, please contact ECHA via the MSCA IT Support contact form (Group category: MSCA End-user; Select service: MSCA consultation phase for MSC / MSCA PfAs).

This consultation procedure is subject to data privacy rules. You are entitled to access, modify, rectify or delete any personal information (to exercise this right, you may contact the evaluation units in ECHA at: ECHA will take into consideration the proposal(s) for amendment(s) provided via this webform and/or forward them to the Registrant within the legal framework of Title VI of Regulation (EC) No 1907/2006. In case you face problems related to the protection of your personal data, you can turn to the Data Protection Officer of ECHA under

This consultation procedure is subject to data privacy rules.