Submit a dispute claim

Before you start filling in the webform, make sure you have the following information at hand:

  1. Your inquiry or pre-registration number (06-XXXXXXXXXX-XX-0000 / 05-XXXXXXXXXX-XX-0000 / 17-XXXXXXXXXX-XX-0000).
  2. Your contact details and contact details of the other party.
  3. Records of the documentation (.zip file or .pdf document):
    • correspondence with the other party demonstrating the efforts made to reach an agreement;
    • communication informing the other party about lodging a dispute at ECHA.

After submitting the webform, you will receive an automatic email confirmation

Note that after 31 December 2019 you can only submit a data sharing dispute under Article 27 of REACH. In principle, you should submit an inquiry before submitting a data-sharing dispute to ECHA.

In case you want to have access to the joint submission without permission to refer to the data submitted by other registrant(s) in order to submit a full opt-out registration dossier, please see

ECHA encourages you to continue negotiating even after you have filed a dispute, as an ECHA decision will not satisfy any party to the dispute in a way that a voluntary agreement would.

You may consult support material available at:

Note: Fields marked with an asterisk (*) are mandatory.

 Your Details
Your first name  *
Your surname  *
Your company name  *
Your company REACH-IT UUID  *
Address of your company
Street address  *
Postal code  *
Town  *
Country  *
Your email address  *
EC/List number  *
CAS number
Your inquiry / pre-registration number
Scope of the dispute
(tonnage band of interest, etc)  *
Your additional comments
 Details of the other party
First name of the other party  *
Surname of the other party  *
Company name of the other party
Role of the other party (e.g. lead registrant)
Address of the company
Street address  *
Postal code  *
Town  *
Country  *
Email address of the other party *
 Documentary evidence
Upload the correspondence with the other party, including the communication informing the other party of lodging a dispute at ECHA (.zip file or .pdf document) *
Maximum file size is 20 MB Maximum file size is 20 MB
Additional attachments (.zip file or .pdf document)
Maximum file size is 20 MB Maximum file size is 20 MB
We commit ourselves that, if we reach an agreement after submitting this data-sharing dispute claim, we will immediately inform ECHA.
We declare that the information provided in this webform reflects the true and complete record of our communications.

The information submitted through this webform is used solely for the purpose of settling data sharing disputes. The European Chemicals Agency will ensure on its part that your personal data is processed as required by Regulation (EC) No 45/2001 of the European Parliament and of the Council of 18 December 2000 on the protection of individuals with regard to the processing of personal data by the Community institutions and bodies and on the free movement of such data (Official Journal of the European Union L 8 of 12 January 2001). Any party submitting data to ECHA is entitled to access and rectify that data. To exercise these rights, contact the data controller at disputes[at]