New List Number Format for REACH & CLP: What’s Changing in 2025?
The European Chemicals Agency (ECHA) assigns an identifier (list number) to each substance registered or notified under REACH or CLP. However, as the current numeric format is running out, ECHA will introduce a new format in early summer 2025.
What is the New Format?
The new format will transition from a purely numeric structure to an alphanumeric one while maintaining the same length.
Current Format Example: 100-000-1
New Format Example: A00-001-5
This change will apply only to newly assigned list numbers. Previously assigned numbers will remain unchanged.
What Does This Mean for Companies?
Companies using internal systems to store and manage list numbers should ensure that their systems are compatible with the new alphanumeric format. Businesses may need to adapt their databases and software solutions accordingly.
Steps to Prepare for the New List Number Format
Review Internal Record-Keeping Systems: Ensure that your software can handle alphanumeric list numbers.
Plan for System Updates: Work with your IT team or software provider to integrate the new format.
Stay Updated with REACH-IT Announcements: Monitor ECHA’s updates to stay informed about implementation timelines.
Train and Inform Stakeholders: Educate employees and partners about the changes and ensure compliance.
Summary and Recommendations
ECHA’s decision to introduce an alphanumeric format for list numbers is a significant step in maintaining efficient chemical management under REACH and CLP. Companies should start preparing now to ensure a smooth transition by 2025.