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Standards Development
This document specifies relevant technical aspects such as the ship-to-shore interface, receiving pipelines, receiving equipment, treatment technology, and monitoring during the process of external reception of ships' ballast water.This document applies to the reception and treatment of ballast water from ships engaged in international voyages.
Harmful aquatic organisms pose a significant threat to marine ecosystems. At present, global maritime trade volume continues to expand. According to research, approximately 12 billion tons of ballast water are exchanged annually, and the introduction of non-native species has had a substantial impact worldwide. In 2004, the International Maritime Organization (IMO) adopted the International Convention for the Control and Management of Ships' Ballast Water and Sediments (the BWM Convention) to mitigate these risks. The Convention entered into force globally in 2017. In 2024, the D-2 discharge standard of the BWM Convention became mandatory, requiring all ships' ballast water management systems (BWMS) to meet the standard. Ballast water reception facilities are one of the means recognized under the BWM Convention for achieving compliance with the D-2 standard. They also serve as an emergency response measure in the event of a failure of a ship's BWMS. Furthermore, reception facilities equipped with treatment capabilities can provide ships with treated ballast water that meets the D-2 standard, thereby offering a viable solution for vessels facing challenging water quality conditions in ports. Currently, the availability of ballast water reception facilities in ports worldwide remains limited. Most existing facilities consist of tank trucks or portable tanks, which generally lack treatment capabilities. Although the IMO has developed the Guidelines for Ballast Water Reception Facilities (G5) to provide general guidance, these guidelines are principle-based and do not specify detailed technical requirements for reception and treatment processes. Consequently, effective global implementation of the G5 Guidelines depends substantially on robust support from relevant ISO standards. The published standard ISO 23055, Ships and marine technology — Design requirements for international ballast water transfer connection flange. However, ISO 23055 cannot function in isolation. A separate standard is needed to establish detailed technical requirements for the design of ship-to-facility connection systems, reception facility types, reception and treatment process flows, and associated monitoring and control measures.It is against this background that the new ISO proposal, Technical requirements for reception of ships' ballast water, has been developed. This proposal aims to promote the effective global implementation of the IMO BWM Convention, provide enhanced solutions for addressing challenging water quality in ports, and contribute to the better protection of global marine ecological security.
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