# Commission Implementing Regulation (EU) 2020/182 of 14 January 2020 on models in the field of professional qualifications in inland navigation (Text with EEA relevance), Division: Identification of the service record book

Extent: E+W+S+N.I.

The serial number of the service record book shall consist of:
the crew member’s CID;
the type of document as coded in the European Reference Data Management System (ERDMS);
the issuing authority as coded in ERDMS;
the number of the document in 4 digits.
The serial number of the service record book without the part on CID shall be repeated in the lower section of each page.

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Source: https://www.legislation.gov.uk/eur/2020/182/annex/II/division/9/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2020-182/annex-II/division-9/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.