By 2021 and 2022, the European Commission modified a few data criteria for REACH chemical registration. Beginning May 1, 2023, ECHA will compare the new registrations and updates to existing ones based on the new revision. According to REACH Regulation Article 20(2), ECHA performs a technical completeness check on each incoming registration and Research andDevelopmentt (PPORD) notification.

With the new revision in place, previously submitted registrations might not now pass the completeness check. Hence, it's advised that registrants be prepared beforehand.

The new and amended checks concern:

In accordance with the clarifications provided to Annex VI, substance identity refers to the assurance of accurate and consistent identification of a substance's boundary composition, constituents, and additions.

Registrants are assisted in reporting information for endpoints related to mutagenicity, degradation, and aquatic toxicity based on Annex VII-XI information requirements. Standard information requirements based on Annexes VII-XI. A more formal style for the justifications for the approach will be requested of registrants who add a new weight-of-evidence modification.

The IUCLID validation assistant will be updated with the revised completeness check rules prior to the release of the new IUCLID version by April 2023. Before submitting registrations to ECHA, registrants are urged to use the validation assistant to double-check them.

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