Registry of CLH intentions until outcome

Registry of CLH intentions until outcome

Registry of CLH intentions until outcome

The registry of classification and labelling (CLH) intentions until outcome lists the intentions and proposals received by ECHA for a new or revised harmonised classification and labelling of a substance. The proposals are submitted by Member State competent authorities, manufacturers, importers or downstream users.  

Interested parties can follow the progress of a proposal through the CLH process, from the notification of the intention to the adoption of the opinion of the Committee for Risk Assessment (RAC). The advance notice enables interested parties to plan and prepare for commenting later on.

Anyone with relevant information on the identity or hazard properties of a substance is encouraged to provide this information to the dossier submitter during the early stages of the process, or at the latest during the consultation.

Where an opinion has been adopted by RAC, the status is indicated as ‘Opinion Adopted’.

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

boric acid [1]; diboron trioxide [2]; tetraboron disodium heptaoxide, hydrate [3]; disodium tetraborate, anhydrous [4]; orthoboric acid sodium salt [5]; disodium tetraborate decahydrate [6]; disodium tetraborate pentahydrate [7]

EC / List no: - CAS no: -
CLP Annex VI Index number
Further substance information
EC Number: 233-139-2 [1]; 234-343-4 [1]; 215-125-8 [2]; 235-541-3 [3]; 215-540-4 [4;6;7]; 237-560-2 [5]
CAS number: 10043-35-3 [1]; 11113-50-1 [1]; 1303-86-2 [2]; 12267-73-1 [3]; 1330-43-4 [4]; 13840-56-7 [5]; 1303-96-4 [6]; 12179-04-3 [7]
Opinion Adopted
Date of intention
Expected date of submission
Submitted for accordance check
Final submission date
Withdrawal date
Legal deadline for opinion adoption
Submitter's email
Harmonised classification at the time of the proposal
Repr. 1B, H360FD
Specific concentration limits at the time of the proposal
A proposal for a revised harmonised classification of boric acid submitted in September 2013 did not include a revision of the SCL and the concentration limit was therefore not addressed in detail by the RAC. However, in the opinion for boric acid the RAC notes that the SCL of 5.5% was derived by using the “German method” and that the GCL of 0.3% would apply for boric acid if the CLP guidance available at the time (version 4.0 - November 2013) had been used. The current proposal will adapt the SCLs (ranging from 3.1% to 8.5 % w/w) to GCLs for boric acid and 6 borates (0.3%).
Proposed harmonised classification by the dossier submitter
Repr. 1B, H360FD
Proposed specific concentration limits by the dossier submitter
SCLs proposed to be removed and replaced by GCLs (0.3% w/w)
Regulatory programme
Chemical registered under REACH
Active substance in Biocidal Products
Start of consultation
Deadline for commenting
Hazard classes open for commenting
Reproductive toxicity (removal of SCLs)

CLH report
Annexes to the CLH report
Date of opinion
RAC Opinion
Background document
RCOM (Comments received)
Attachments received during consultation (excluding journal articles)
Minority opinion(s)
Other annexes
ATP number and date
ATP17 - (11/03/2021), 17/12/2022
Link to ATP
Latest update
First published

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Group members
This group of substance has the following member substances:
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Name EC / List no. CAS no. Association
Disodium tetraborate, anhydrous 215-540-4 1330-43-4 Official source
Tetraboron disodium heptaoxide, hydrate 235-541-3 12267-73-1 Official source
Diboron trioxide 215-125-8 1303-86-2 Official source
Boric acid
EC No. 233-139-2 and EC No. 234-343-4
- - Official source
Orthoboric acid, sodium salt 237-560-2 13840-56-7 Official source