New Q&A on how to create a joint submission for a UVCB substance

ECHA published a new <link https: echa.europa.eu support qas-support qas q-and-a _blank>Q&A  that offers advice to lead registrants on how to create a joint submission for substances that are of unknown or variable composition, complex reaction products or biological materials (UVCBs) without any numerical identifier (EC/CAS numbers).

If you have already created a joint submission and submitted a dossier but failed ECHA’s business rules check, contact ECHA for support.