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| Attachment | Size | Format |
| Privacy regulations Rijkswaterstaat (IVS90) | 80 kb | |
| Reference Data Change Request / Update Form | 26 kb | zip-file |
| Reference Tool (reftool.risexpertgroups.org) | link | site |
| Bics 3.07 reference data (Apr 2008) | 3.6 Mb | zip-file |
| Bics 4.00 reference data (Sep 2009) | 4,1 Mb | zip-file |
| ERI RefData (actual), BICS, ERI-Net etc. | link | site |
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