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Registry of CLH intentions until outcome

Member States, or manufacturers, importers or downstream users may propose a harmonised classification and labelling of a substance. Anyone with relevant information on the identity or hazard properties of the substance may bring this to the attention of the party submitting a CLH dossier during the early stages of the process, or provide such information at the latest during the public consultation. The ‘Status’ column provides information on the stage of the process the substance is in. Further information on these different stages is available on the CLH process page linked here.  

Substances for which an Opinion was adopted by the Committee for Risk Assessment are indicated with the Status “Opinion Adopted” in the table below.

Note: The value ‘MIDU’ under the ‘Submitter’ field refers to Manufacturer, Importer or Downstream User.

The classification tables for those substances that have been reviewed are listed in the ‘Corrigenda to the RAC opinions’ document.

crystalline silica: quartz (SiO2); [1] tridymite; [2] cristobalite; [3]

EC / List no: - CAS no: -
CLP Annex VI Index number
Date of intention
Expected date of submission
Submitted for accordance check
Final submission date
Withdrawal date
Legal deadline for opinion adoption
Submitter's email
Further substance information
Reason for withdrawal: As “work involving exposure to respirable crystalline silica dust” is now included in the Directive 2017/2398/CE, French MSCA considers that the need to propose a classification as carcinogen for crystalline silica has an added-value for human health protection mostly if consumer uses is identified. However, no consumer use leading to a significant exposure to crystalline silica by inhalation has been identified. Therefore, French MSCA has decided to withdraw the intention to submit a CLH report for this substance.
Current harmonised classification
Current specific concentration limits
Proposed harmonised classification by the dossier submitter
Proposed specific concentration limits by the dossier submitter
Regulatory programme
Other substance
Start of consultation
Deadline for commenting
Hazard classes open for commenting
CLH report
Annexes to the CLH report
Date of opinion
RAC Opinion
Background document
RCOM (Comments received)
Attachments received during public consultation (excluding journal articles)
Minority opinion(s)
Other annexes
ATP number and date
Link to ATP
Latest update

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Group members
This group of substance has the following member substances:
Name EC / List no. CAS no. Association
Cristobalite 238-455-4 14464-46-1 Expert judgement
Tridymite 239-487-1 15468-32-3 Expert judgement
Quartz (SiO2) 238-878-4 14808-60-7 Expert judgement

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