behydrogen.ai ReFuelEU Aviation Mandates and Belgian Hydrogen Policy Alignment Through 2032 ReFuelEU AviationRED IIIBelgian hydrogenSAF compliancee-fuels June 16, 2026 • 3 min read As the European Union’s ReFuelEU Aviation regulation enters force with binding sustainable aviation fuel uplift mandates, Belgium’s dual focus on geological hydrogen exploration and policy alignment offers a strategic pathway for compliance officers navigating the 2025–2032 calendar. The BE.Hydrogen programme, backed by Minister Crucke and Belspo, positions Belgian coal basins and the Hercynian basement as potential feedstock sources for Power-to-Liquid e-fuels that satisfy both RED III sustainability criteria and ReFuelEU blending obligations. 2% Minimum SAF share at EU airports from 2025 6% Minimum SAF share required by 2030 20% Minimum SAF share mandated by 2035 1.2% Synthetic e-fuel sub-mandate from 2030 ReFuelEU Aviation Trajectory and Compliance Milestones The ReFuelEU Aviation regulation establishes a progressive uplift mandate beginning at 2 percent sustainable aviation fuel share in 2025, rising to 6 percent in 2030 and 20 percent by 2035. Within that trajectory, a synthetic e-fuel sub-mandate of 1.2 percent takes effect in 2030, creating a dedicated market for Power-to-Liquid kerosene derived from renewable hydrogen and captured CO₂. Fuel suppliers serving EU airports must demonstrate compliance annually, with penalties for shortfalls applied at the point of uplift. Compliance and marketing directors face a tightening window: the 2030 milestone requires both HEFA and synthetic pathways to scale in parallel, while RED III sustainability criteria—covering greenhouse-gas savings thresholds and biomass sourcing—apply equally to all feedstocks. Belgium’s participation in the Greater Region energy corridor and its domestic geological surveys under GSB offer two complementary routes to secure low-carbon hydrogen for e-fuel production. Belgian Hydrogen Geology and SAF Feedstock Potential The BE.Hydrogen programme, coordinated by Belspo and supported by Minister Crucke, has commissioned seismic and geochemical surveys across the Walloon coal basins and the deeper Hercynian basement. Early data suggest the presence of naturally accumulating hydrogen in fracture networks, a resource that—if commercially proven—could supply electrolysers with cost-advantaged feedstock or blend directly into synthetic-fuel pathways. GSB’s mapping efforts extend into the Greater Region, where cross-border infrastructure planning aligns with the EU’s hydrogen backbone development. For SAF producers, Belgian geological hydrogen represents a hedge against electrolysis cost volatility and grid-constraint risk. If natural flows prove continuous, the hydrogen can be purified and combined with biogenic or direct-air-capture CO₂ to produce drop-in synthetic kerosene that qualifies under both RED III Article 27 (renewable fuels of non-biological origin) and ReFuelEU’s e-fuel sub-mandate. This geological optionality is particularly relevant for compliance teams managing 2030–2032 supply contracts in a market where electrolyser capacity remains constrained. Strategic Implications for Compliance Officers Through 2032 Compliance directors should monitor three parallel streams: ReFuelEU’s annual reporting cycle, RED III’s updated sustainability and GHG-calculation methodology, and Belgium’s geological-hydrogen permitting framework as it matures under Belspo oversight. The 2030 sub-mandate for synthetic e-fuels creates an immediate procurement imperative, while the 2032 mid-term review—embedded in the ReFuelEU text—will assess progress and potentially adjust blend rates or penalty structures. Belgium’s policy alignment with EU regulation, combined with its geological exploration programme, offers early-mover advantage for airlines and fuel suppliers willing to lock in offtake agreements before electrolyser queues lengthen. Marketing teams can leverage Belgian provenance as a differentiation narrative, particularly for corporate travel clients requiring auditable low-carbon claims. The intersection of natural hydrogen discovery, RED III compliance, and ReFuelEU mandates defines a narrow but high-value corridor for strategic investment through the end of this decade. Bottom Line ReFuelEU Aviation’s 2 percent minimum SAF share in 2025, rising to 6 percent by 2030 and 20 percent by 2035—with a 1.2 percent synthetic e-fuel sub-mandate from 2030—creates a compliance calendar that Belgian geological hydrogen exploration can directly support. The BE.Hydrogen programme, Minister Crucke’s backing, and GSB’s mapping of the Hercynian basement and coal basins position Belgium as a potential low-cost feedstock hub for Power-to-Liquid kerosene. Compliance and marketing directors should track Belgian permitting timelines, RED III Article 27 guidelines, and the 2032 ReFuelEU mid-term review to secure strategic offtake agreements before electrolyser capacity constraints tighten across the Greater Region. Sources ReFuelEU aviation – Mobility and Transport – European Commission ReFuelEU Aviation · blend trajectory & scope | e-fuels What EU RED III compliance for biofuels means for renewable fuel operators – RSB Understanding the ReFuelEU Aviation Regulation and Implications for Aviation in the EU — Sustainable Aviation Futures Featured image via Unsplash.