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注册人是否有义务保持边界组成信息为最新？

问题（中文）
注册人是否有义务保持边界组成信息为最新？
Question (EN)
Are registrants obliged to keep the boundary composition information up-to-date?
中文内容由 Google Cloud Translation 自动生成，仅供参考；请以英文原文为准。问答资料来自欧盟化学品管理局（ECHA）官方网站。
答案（中文）
只有牵头注册人，在其他共同注册人同意的情况下，才需要在其档案中报告边界成分并保持更新。牵头注册人在边界成分层面所做的任何更改都将在 REACH-IT 中对联合提交的所有成员可见。强烈建议尚未以 IUCLID 6 格式更新其注册的牵头注册人与其成员和潜在注册人讨论边界成分，并尽快更新其档案。牵头注册人在提交 IUCLID 档案时必须包含边界成分记录。
Answer (EN)
Only the lead registrant, with the agreement of the other co-registrants, is required to report the boundary composition(s) in his dossier and keep it up-to-date. Any change made by the lead registrant at the level of the boundary composition will be visible to all members of the joint submission in REACH-IT. Lead registrants that have not yet updated their registration in IUCLID 6 format are strongly encouraged to discuss the boundary composition with their members and potential registrants and update their dossiers as soon as possible.  It is mandatory for lead registrants to include the boundary composition record when submitting their IUCLID dossier.