Port of San Diego Earns Top Marks in Environmental Leadership with Green Marine Recertification

The Port of San Diego has been recertified by Green Marine, an international voluntary environmental certification program for the maritime industry. The Port first enrolled in Green Marine in 2018 and has since achieved annual self-evaluation and biennial certification. This recertification covers the 2024 and 2025 calendar years.

"We are proud to be certified again as part of the Green Marine program," said Chair Ann Moore, Port of San Diego Board of Port Commissioners. "As a Port of firsts, we are always thinking ahead and building on the progress we have made in reducing emissions and continuing our commitment to serving as environmental champions of San Diego Bay."

To earn recertification, the Port participated in a rigorous evaluation of its environmental initiatives. The evaluation process includes an annual self-evaluation and review process with a third-party verifier every two years. Verification includes interviews, site visits, and reviews of project and program documentation to support reported scores. This year's results are third-party verified.

The Port was evaluated for reducing greenhouse gas and air pollutants, spill prevention and stormwater management, reducing impact of port activities on nearby communities, environmental leadership, community relations, waste management, and underwater noise management.

Performance Report

Overall, the Port achieved Level 5 for six out of the eight performance indicators evaluated including Community Impacts, Community Relations, Environmental Leadership, Spill Prevention and Stormwater Management and Waste Management. Level 5 is the highest level and demonstrates excellence and leadership in the performance indicator.

These results place the Port among the top Green Marine-certified ports demonstrating measurable progress on environmental stewardship and continuous improvement. The Port's strong scores highlight its ongoing commitment to advancing practical, performance-based sustainability efforts across its operations and San Diego Bay.

More than 200 organizations participated in the 2025 Green Marine certification program, including ship owners, ports, terminals and shipyards from around the world. Green Marine certificates were distributed on June 11, 2026 during Green Tech 2026 in Quebec City.