The European Chemicals Agency (ECHA) has launched a new series of shortened
versions of the REACH Guidance Documents and Fact Sheet on the inclusion of
substances in the List of Substances Subject to Authorisation.

Guidance in a Nutshell on requirements for substances in articles:
http://guidance.echa.europa.eu/docs/guidance_document/nutshell_guidance_articles2.pdf

Guidance in a nutshell on registration data and dossier handling:
http://guidance.echa.europa.eu/docs/guidance_document/nutshell_guidance.pdf