Submission of an intention or a proposal for harmonised classification and labelling (CLH) of a substance, in accordance with the CLP Regulation (EC) 1272/2008

Intentions on CLH proposals provide information to ECHA and to the stakeholders about planned CLH dossiers. Dossier submitters are therefore encouraged to provide to ECHA an intention as early as possible in the preparation of the CLH dossier. Intentions are published in the Registry of Intentions (RoI) on ECHA’s website to inform all interested parties about the CLH dossiers that are under preparation and to avoid situations where two or more dossiers are prepared for the same substance at the same time. If the submitter of an intention agrees, their contact details may be published with the intention, allowing other parties to provide any relevant information on the particular substance and the hazard classes concerned directly to the prospective dossier submitter.

This webform is used for the submission of :
  • CLH intentions
  • updates to CLH intentions (e.g. proposed classification or expected date of submission)
  • CLH proposals (submission of a CLH IUCLID dossier)
  • RCOM documents

Who should submit a CLH intention and CLH proposal?

Fields marked with * are required. Other information is only required if changed from previous submissions on the same external identifier.

Submission related information
In the ACT, all activities on one substance are visible in one single entry which links these activities through the external identifier. Therefore, using the external identifier is crucial to allow adequate managing of the ACT. If any authority activity (e.g. Screening, Substance Evaluation) has been performed on this substance in the past or is ongoing, the external identifier should be included here below. If there is no External Identifier yet for the substance, please leave this field empty – you will receive one once this webform is submitted. When sending an update to an intention, submitting a CLH dossier or submitting an RCOM document, please use the External Identifier provided to you/used at the intention stage.
External identifier :
Please specify below the type of submission:
“Intention” - announces the start of preparation of the CLH proposal.
“Submission of documentation/dossier” - refers to any document or dossier submitted during the process (e.g. outcome document, Annex XV dossier, RCOM).
“Update of information” - refers to any other change in the activity. “Withdrawal” – refers to removal of the submitted intention/proposal. In this case please provide reasoning under “Other remarks” or as an attachment.
Type of submission : *


Activity performed by
Specify the organisation who is responsible for performing this activity. In case, activities on this substance are performed by more than one Member State Authority (e.g. Substance Evaluation performed by one authority and PBT assessment by another one), please tick the box indicating that this is a “Shared substance”.

On the website, only information agreed to be disclosed for this activity will be displayed. Nevertheless, it is advisable to provide more specific contact information (contact person, email) to ECHA in order to facilitate the communication between the organisation notifying an activity, other authorities and ECHA. This information will be kept internally in ECHA which will be in charge of facilitating communication and exchanges.

Please note: If you are a Manufacturer, Importer or Downstream user (M, I or DU), please create your account in REACH-IT (if you do not have one already) before proceeding with the submission of the webform.

Identification of dossier submitter – information to be used on the ECHA website or formal communication when relevant.

The submitter of this webform:*(select any one of the following)
Member State Competent Authority (MSCA):
Manufacturer, Importer or Downstream User of the substance or group of substances:
Representative on behalf of a Manufacturer, Importer or Downstream User of the substance or group of substances:  
Organisation name : *
as indicated in the REACH-IT account or MSCA name
Phone No:
(Will be published on the Registry of Intentions so that parties holding relevant data are able to submit it to you. Leave empty if you do not wish to publish the email address)
Street (cont):
Postal Code:


Contact person - information for internal ECHA use

Legal entity UUID of the MSCA or M, I or DU:
(mandatory for MIDU)
REACH-IT account user name:
as indicated in the REACH-IT account
(mandatory for MIDU)
First Name: *
Family Name: *
Email : *
Phone No:
(e.g. +358 111 222 333)
Shared substance:
More than one Authority is involved in this activity, the above organisation being the main authority responsible for this activity. Additional information can be provided in “Other remarks”.

I declare that I am an authorised representative of an MSCA, or a manufacturer, importer or downstream User of a substance established in any of the Member States under the conditions laid down in Article 37 of the Regulation (EC) No 1272/2008 (CLP Regulation).
In cases foreseen under Article 37(2) of the CLP Regulation, I declare that I am an authorised representative of the legal entity for the purpose of submitting an intention for the CLH dossier that is currently planned/under preparation, or to submit the CLH proposal, and I am authorised to transmit and receive documents on behalf of this legal entity. I am aware that a power of attorney may be asked by the Agency.
As a submitter, I understand that it is my responsibility to verify the data entered in my REACH-IT account and to provide for the accessibility and functionality of my email address in order to ensure the communication with ECHA.
As a manufacturer, importer or downstream user or as a party representing a manufacturer, importer or downstream user I also understand that the declaration of the company size in my REACH-IT account is to be based on the standards stipulated in the Annex to Commission Recommendation 2003/361/EC concerning the definition of micro, small and medium-sized enterprises, and that the calculation of the relevant headcount and financial figures particularly includes the relevant data of partner and linked enterprises as defined in the Recommendation. As a representative on behalf of a manufacturer, importer or downstream user, I understand that the company size shall be the size of the manufacturer, importer or downstream user that I represent.

As a submitter I confirm the correctness and completeness of the data supplied through this webform.

By submitting any information through the webform I guarantee to hold all necessary rights with regard to the information provided, including but not limited to copyright where applicable, and therefore that I am entitled to submit the said information for the purposes listed herein and for its use by ECHA, including its Committees.

Please check the declaration*
Information on the substance identification and composition

A CLH dossier can be prepared for a substance with a well-defined composition (mono-constituent, multi-constituent) or a substance of Unknown or Variable composition, Complex reaction products or Biological materials (UVCB).
A CLH dossier can also be prepared for a group of substances (e.g. close structural analogues or various salts of the same substance). In the event that you are aiming to prepare a CLH proposal covering several substances, please contact the ECHA Secretariat ( before you start drafting a proposal.

More information regarding the preparation of a CLH dossier is available on the ECHA website at the following links

Existing or proposed substance identity in Annex VI

Note that fields marked with (*) are obligatory. If the information is not relevant, not available or unknown please record this accordingly.

Please indicate for the substance the following information (for multi-constituent substances and UVCBs please identify the different constituents and their concentration):

Type of Substance: *
Substance identity for a new Annex VI entry or modifications to an existing entry *
Information on the substance
Please fill in as much information as available to achieve the most appropriate substance identity.

Substance name(International Chemical Identification in Annex VI of CLP): *
EC number: *
EC Name:
CAS number (or other identification number): *
IUPAC name(s) (or the chemical name(s) when the IUPAC name is not available) or the name of the entry in case of a group entry:*
SMILES notation:
Other relevant substance information:
(Please use this field in case the Substance name/IUPAC name is longer than 255 characters)
Does the substance contain other constituents/impurities/transformation?
Please specify here other constituents of multi-constituent substances including their concentrations ranges. For UVCBs, please provide all known constituents and their concentration ranges. Impurities and transformation products that are relevant for classification and labelling should also be reported in all cases. Fill in one substance identity for each constituent/impurity/transformation product.

(Potential) concern* Please specify here any of your (initial) concerns related to the substance that might be relevant for this or any of the follow-up processes. This helps to identify common areas of concern and improves coordination and consistency between the different processes.

Hazard properties:
The ticking of at least one of these tick-boxes is mandatory

The substance is considered as:

Date of intention
Expected date of submission DD/MM/YYYY  
Other remarks  
Upload the CLH dossier and any relevant documents If the file is confidential, please indicate this in the filename. If confidential information or documents are included in the IUCLID file, please mark them with the applicable flag (i.e. CBI, no PA, IP). Non-confidential documents will be shared with stakeholder organisations. Confidential documents will be shared only with MSCAs, the Committees, the European Commission and ECHA.
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 100 MB.

Please note that if an access to documents application pursuant to Regulation (EC) No 1049/2001 on public access to documents is received regarding this information, in order to define its position ECHA will have to first perform an assessment of the content of this information. Therefore, you are invited to indicate below any reason for which disclosure of this information should be denied. Please note that ECHA can only examine reasons appearing in Article 4 of the Regulation (EC) No 1049/2001 on public access to documents as valid.

I have the following reasons enumerated in Article 4(1) or 4(2) of Regulation (EC) No 1049/2001 regarding public access to documents why the information submitted as confidential cannot be disclosed to persons requesting access to documents (please explain below in the commenting field those reasons; a reason could be that the protection of your commercial interests, including intellectual property, would be undermined)."


User identification
Enter the text from image without spaces. Letters are not case-sensitive.

The information submitted through this webform is used solely for the purpose of the CLH process. The legal basis for the processing is found in Article 37(4) of Regulation (EC) No 1272/2008 on the classification, labelling and packaging of substances and mixtures (CLP Regulation). The European Chemicals Agency will ensure on its part that your personal data is processed as required by Regulation (EC) No 45/2001 on the protection of personal data. Any party submitting personal data to ECHA is entitled to access and rectify that data. To exercise these rights, contact the data controller, you also have the right to recourse to ECHA's Data Protection Officer ( or to the European Data Protection Supervisor.

European Chemicals Agency Annankatu 18, P.O. Box 400, FI-00121 Helsinki, Finland