US Maritime Energy & Emissions Action Plan Targets Net Zero By 2050

10th February 2025

The United States has unveiled its Action Plan for Maritime Energy and Emissions Innovation, laying out a comprehensive roadmap to drastically reduce greenhouse gas (GHG) emissions in the maritime sector and achieve near-total decarbonisation by 2050. Central to this plan is the Sustainable Maritime Fuel Grand Challenge, a collaborative public-private initiative aimed at accelerating the development and deployment of low- and zero-emission fuels, such as green ammonia and methanol, alongside modernising shipbuilding and port infrastructure.

Key Actions for Decarbonisation
The plan identifies three primary strategies to decarbonise the maritime industry:

• Sustainable Maritime Grand Challenge - Coordinating with industry to rapidly deploy affordable, competitive, and scalable low-emission fuels and technologies.
• Fuel Transition and Technology Adoption - Promoting the use of green ammonia, methanol, sustainable drop-in fuels, vessel electrification, and hydrogen fuel cell technologies for ocean-going vessels.
• International Leadership - Strengthening commitments through global partnerships such as the International Maritime Organisation (IMO) and initiatives like the Green Shipping Challenge.

• Electrification for harbour craft.
• Biofuel and methanol adoption for ocean-going vessels.
• Hybrid solutions for non-commercial vessels.

• Promoting clean energy innovation.
• Enhancing global competitiveness.
• Reducing climate change and air pollution impacts on communities.

• Design and production of low and zero-emission vessels.
• Development and bunkering of sustainable maritime fuels.
• Construction of critical port and energy infrastructure.

By 2025, the USA will define standards for sustainable maritime fuels, focusing on both environmental and socio-economic sustainability.

Positioning the USA as a Global Leader
With maritime shipping contributing significantly to global emissions, the US plan positions the nation as a leader in decarbonising international logistics. It also reinforces domestic infrastructure growth and the clean energy transition, aligning economic development with environmental stewardship. This bold roadmap underscores the US's commitment to a sustainable maritime future and its role in shaping global efforts to combat climate change. The need to demonstrate environmental responsibility is key for today’s marine and offshore industries. Protea has a complete Marine emissions monitoring section on our website at https://www.protea.ltd.uk/marine.

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