This session examines the engineering, operational, and regulatory enablers required to scale carbon capture, utilization, and storage (CCUS) and hydrogen systems as part of a decarbonized energy future. Presentations explore subsurface CO2 behavior through advanced coupled modeling, storage-focused CO2-EOR optimization, and monitoring strategies that support long-term containment assurance. Emerging concepts for CO2 storage beyond conventional reservoirs, including marine environments, are assessed alongside their technical and environmental challenges. The session also highlights how predictive and adaptive control methods can improve hydrogen supply-chain performance under uncertain demand and renewable availability. Regulatory perspectives from Latin America connect these technical advances to practical pathways for safe, compliant, and investable deployment.