# Commission Implementing Regulation (EU) 2019/838 of 20 February 2019 on technical specifications for vessel tracking and tracing systems and repealing Regulation (EC) No 415/2007, Division 4.1: Introduction

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

Vessels not obliged to operate Inland AIS mobile stations may use other AIS mobile stations. The following mobile stations can be used:
(a) AIS Class A mobile station in accordance with Articles 35(2) and 35(3) of Commission Directive 2014/90/EU;
(b) AIS Class B mobile station in accordance with point 4.2.
The use of such stations in inland waterways is up to the decision of the Competent Authority responsible for the navigation in that area.
If such stations are used on a voluntary basis, the shipmaster shall keep the manually entered AIS data constantly up to date. No incorrect data shall be transmitted over AIS.

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Source: https://www.legislation.gov.uk/eur/2019/838/annex/division/4/division/4.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-838/annex/division-4/division-4.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.