Japan Expands Investigation into Marine Engine Emissions Scandal

Japan’s Ministry of Land, Infrastructure, Transport and Tourism is expanding its investigation into marine engine manufacturers following a scandal involving emissions data tampering. Hitachi Zosen and its subsidiaries recently admitted to falsifying emissions testbed data, prompting government agencies to probe other companies in the industry. The investigation aims to ensure compliance with environmental and safety regulations and restore trust in the sector.

Hitachi Zosen disclosed that over 1,300 engines had their emissions data manipulated since 1999, affecting calculations for NOx emissions. The company, which produces engines under license for major industry players like MAN Energy Solutions and WinGD, acknowledged the deliberate alteration of data to meet customer specifications. Japanese authorities have pledged to scrutinize all marine engine manufacturers in the country for similar falsifications, emphasizing the importance of regulatory compliance.

In response to the scandal, Hitachi Zosen has established a special investigation committee composed of external experts to investigate the issue and prevent recurrence. The company expressed regret for the breach of trust and inconvenience caused, committing to reassess its business operations. With other Japanese engine makers also under scrutiny, the industry faces a period of introspection and reform to uphold environmental standards and rebuild credibility.

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