Italian energy engineering and construction company Saipem SPA has received approval in principle and Technology Qualification certifications from RINA for its methodology in qualifying materials used in subsea hydrogen pipelines. The company highlights the unique challenges of transporting hydrogen through pipelines due to material degradation potential and has developed a rigorous protocol to assess metal and weld performance when exposed to hydrogen. These certifications enable the use of Saipem's protocol for qualifying materials in the construction of subsea hydrogen pipelines, crucial for the energy transition. Saipem also achieved a significant milestone by adapting a pipeline lining technology for offshore and subsea environments, replacing corrosion-resistant alloys with plastics. The technology has been validated by DNV for use in challenging conditions, with expectations of reducing system costs by up to 40%. Saipem plans to focus initially on water injection pipelines and later expand to risers, with target markets in regions like the Middle East, Gulf of Mexico, and Brazil.