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潜在关注物质手动筛选候选名单与潜在合规性检查（CCH）物质清单有何区别？

问题（中文）
潜在关注物质手动筛选候选名单与潜在合规性检查（CCH）物质清单有何区别？
Question (EN)
What is the difference between the shortlist for manual screening of substances of potential concern and the list of substances for potential compliance check (CCH)?
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）
手动筛选的候选清单每年仅向MSCA发布一次，旨在识别符合REACH和CLP流程的候选物质。成员国主管部门负责执行手动筛选。合规性检查可以作为手动筛选的结果。但是，也可以通过其他方式选择物质进行合规性检查。CCH的潜在候选物质清单每年更新数次，并发布在ECHA网站上，旨在识别存在特定数据缺口且可通过CCH解决的候选物质。
Answer (EN)
The shortlist for manual screening is only released to MSCAs once a year and aims to identify candidates for several REACH and CLP processes. Member State competent authorities perform the manual screening. Compliance check can be an outcome of this manual screening. However, substances may be selected for Complicance Check by other means. The list of potential candidates for CCH is updated several times a year, published on ECHA’s website and aims to identify candidates with specific data gaps that can be addressed with CCH.