Member States have set up Maritime National Single Windows where ship operators and agents can fulfil in electronic format reporting obligations applied to ships arriving in and departing from their ports.

For the facilitation of maritime transport, and to further reduce the administrative burden for shipping companies, the information procedures for fulfilment of reporting obligations should be further simplified and harmonised and should be technology-neutral, promoting future-proof reporting solutions.

For the purpose of offering more interoperability and more comprehensive, user-friendly communication and information flows, and to improve the functioning of the internal market and meet the needs of citizens and businesses, the European Parliament and the Council have issued on 20 June 2019 Regulation (EU) 2019/1239 establishing a European Maritime Single Window environment (EMSWe).

The main aim of the EMSWe Regulation is to lay down harmonised rules for the provision of the information that is required for port calls, in particular by ensuring that the same data sets can be reported to each Maritime National Single Window in the same way. This Regulation also aims to facilitate the transmission of information between declarants, relevant authorities and the providers of port services in the port of call, and other Member States.

The implementation of this Regulation should take into account the SafeSeaNet system established at national and Union level, which should continue to facilitate the exchange and distribution of information received through the Maritime National Single Windows between the Member States.

According to the Regulation, the Commission shall adopt delegated and implementing acts laying down the technical specifications of the EMSWe. The plan for drafting such specifications and for developing the different components of the EMSWe is presented in the Commission Multi-Annual Implementation Plan for the EMSWe Regulation (see the Communication from the Commission C/2024/6300).

The Commission relies on EMSA for the elaboration of the following EMSWe specifications:

• The EMSWe data set, published under Delegated Regulation (EU) 2023/205, which covers of all information elements that might be requested by national authorities or port operators for administrative or operational purposes when a ship makes a call in any port of the EU,
• Technical specifications, standards and procedures, published under Implementing Regulation (EU) 2023/204, related to:
  • Common functionalities of graphical user interfaces of the Maritime National Single Windows,
  • Templates of harmonised digital spreadsheets that can be used by declarants to upload information in the Maritime National Single Windows,
  • Specifications for the EMSWe ship database, containing ships identification information and particulars as well as records on ship reporting exemptions,
  • Specifications for the common location database, containing a reference list of location codes and port facility codes,
  • Specification for the common hazmat database, containing a list of dangerous and polluting goods taking into consideration the relevant data elements from the IMO Conventions and Codes,
• The EMSWe databases’ System Interface Guide (SIG) which defines system to system messages, commissioning measures and procedures for establishing connections with the Maritime National Single Windows.
• The Message Implementation Guide (MIG), which provides the functional specifications of the message exchanges between declarants or data service providers and the Maritime National Single Windows. The MIG is referred to in Article 2 of Commission Implementing Regulation (EU) 2023/2790 laying down functional and technical specifications for the reporting interface module of the Maritime National Single Windows.

For this task, the Agency works in close collaboration with experts from the Member States, Shipping Industry associations and the relevant DGs of the Commission.