News and publications NewsIMO PPR 13: Key developments in maritime environmental regulationPublished: 17 April 2026NewsEnvironmentPollutionDuring the 13th meeting of the IMO Sub-Committee on Pollution Prevention and Response (PPR 13), important steps were once again taken towards stricter environmental regulations in shipping. For you as a shipowner, these developments are not only relevant from a compliance perspective, but also have a direct impact on your operational risks. The key message is clear: the bar for environmental performance is rising – and responsibility is increasingly being placed on the shipowner. What stands out is that regulations are becoming more concrete in day-to-day operations. Stricter requirements regarding bilge water and oil management not only focus on technology, but especially on proper use, maintenance, and record-keeping. Errors in procedures or documentation can therefore more quickly lead to sanctions or claims. At the same time, the energy transition is accelerating. The rise of alternative fuels such as ammonia and hydrogen introduces new, less proven technologies. This increases the likelihood of technical and operational uncertainties, particularly in the early stages of implementation. Requirements are also being further tightened in the areas of emissions and tanker operations. This may lead to necessary modifications to existing vessels and requires proactive planning and investment. In addition, attention to biofouling and waste management is growing, with shipowners bearing increasing responsibility for maintenance, efficiency, and environmental impact. On top of this, regulations are increasingly being determined at a regional level, for example in sensitive areas such as the Arctic or in relation to the use of scrubbers. This makes operations more complex and increases the risk of non-compliance on international routes. The common thread is that risks are shifting: from incidental damage to continuous compliance and ma