一旦某种物质被通报到 C&L 清单，制造商或进口商是否仍需要通报同一物质，尽管该物质已在清单中？

一旦某种物质被通报到 C&L 清单，制造商或进口商是否仍需要通报同一物质，尽管该物质已在清单中？

Once a substance has been notified to the C&L Inventory, will manufacturers or importers still have to notify the same substance although it is already on the Inventory?

是的，他们会。每个将该物质投放市场的法人实体都必须进行通报。然而，制造商或进口商可能更倾向于以集体通报的方式，即只有一个通报人代表其他通报人向 REACH-IT 提交通报，同时同时提交后者的身份信息。此外，如果您使用在线 REACH-IT 工具提交通报，并且：a) 该物质已被其他制造商或进口商通报；b) 您认为显示的该物质的适用性清单 (C&L) 合适，您只需勾选“我同意”框，您的通报档案中的相关字段将自动填写。

Yes, they will. A notification must be made by each legal entity that places the substance on the market. Nevertheless, manufacturers or importers may prefer to notify as a group where only one notifier introduces the notification in REACH-IT on behalf of the other notifiers while introducing the identity of the latter as well.   In addition, if you are using the online REACH-IT tool for the submission of a notification and: a) the substance has already been notified by other manufacturer or importer and; b) you consider the displayed C&L for that substance appropriate, you can just tick the box "I agree" and the relevant fields of your notification dossier are automatically filled in.