R
Registration
Definition
Registration is the core REACH obligation under Articles 6–10: any EU manufacturer or importer of a substance (on its own, in a mixture, or for certain uses in articles) above 1 tonne per year must register the substance with ECHA before placing it on the EU market. Registration requires submission of a technical dossier (and a Chemical Safety Report for hazardous or PBT/vPvB substances above 10 t/year) via IUCLID and REACH-IT. Substances are registered on a per-substance, per-registrant basis within a joint submission framework (SIEF).
Source
REACH Regulation (EC) No 1907/2006, Articles 5–14 and Annex VI.
Practical Explanation (Compliance Context)
Registration is the first compliance obligation for EU manufacturers and importers. The registration dossier must include complete physico-chemical, toxicological, and ecotoxicological data appropriate for the tonnage band and hazard profile. Lead registrants in SIEFs submit the joint data set; member registrants submit individual dossiers referencing the joint submission. Registration numbers are required on SDS and confirm regulatory status.