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Adopted opinions and previous consultations on applications for authorisation

Adopted opinions and previous consultations on applications for authorisation

This page provides further information on the applications for authorisation or review reports, which have undergone consultation. The applications for authorisation are in the opinion development phase until the final opinions of the Committees for Risk Assessment and Socio-economic Analysis have been adopted and sent to the European Commission. Its decision-making process can be followed through the comitology register, where further information is published about the REACH Committee's past and upcoming meetings.

On 1 February 2020, the United Kingdom (UK) withdrew from the EU. The transition period provided by the withdrawal agreement ended on 31 December 2020. As of 1 January 2021, an application for an authorisation submitted by a person established in the UK (except Northern Ireland) is no longer valid in the EU, unless that application has been transferred to a legal entity established in the EU or Northern Ireland before the end of the transition period. Therefore, authorisation applications and decisions in so far as these concern persons established in the UK (except Northern Ireland) are no longer considered valid. The table below will be updated at a later stage.


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Substance Details

Chromium trioxide
EC Number
CAS Number
Entry Nr in Annex XIV
Use name
Formulation of mixtures of chromium trioxide for functional chrome plating, functional chrome plating with decorative character and surface treatment (except ETP) for applications in various industry sectors namely architectural, automotive, metal manufacturing and finishing, and general engineering
Broad information on use applied for (conditions of use and function)
This use presents the formulation of proprietary chromium-based mixtures, in liquid or solid forms, using chromium trioxide combined with other chemical substances and/or compounds. Formulation of chromium trioxide–containing mixtures is generally a batch process. This scenario addresses proprietary formulation by stand-alone formulators. On-site formulation (i.e. mixing) at industrial sites prior to surface treatment activities is not included in this scenario.

Technical function: Chromium trioxide has no independent function at the formulation stage. The substance function is relevant during the subsequent uses of the produced mixture at the downstream users' sites.

Annual tonnage used: <1,000
Review period requested: 12 years
Use applied for number in application for authorisation
Broad information on use applied for (Use descriptor system)
Environmental release category (ERC): 2
Process category (PROC): 1, 2, 3, 4, 5, 8a, 8b, 9, 15
Product category (PC): 14
Technical Function: Ingredient
Summary table of RMMs and OCs (non confidential)
Section 9 and 10 of the CSR (original and updated, if available) (non confidential)
Analysis of Alternatives (non confidential report)
Substitution Plan (non confidential summary)
Socio-Economic Analysis (non confidential report)
Joint Analysis of Alternatives and Socio-Economic Analysis (non confidential report)
Explanatory note
Additional information
REACHLaw Ltd as Only Representative on behalf of Joint Stock Company “Novotroitsk Plant of Chromium Compounds”
Application type
Commission decided
Other consultations on the same/ similar use
Comments submitted to date
Download comments
Response to comments by applicant
Responses to RAC and SEAC requests by Applicant(s) (non confidential)
Compiled RAC and SEAC opinions
Minority positions
Adopted commission decision (OJ summary)
2020/C 442/05
Authorisation decision
C(2020)8735 Annex

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