Named Edmonton diesel–hydrogen dual-fuel retrofit. guardianhds.com: Guardian HDS combines hydrogen with diesel through a proprietary multi-port injection system; integrates with the vehicle ECM; in-house injector harness, hydrogen injector, calibrated injection tubes, common rail, spacer plate, pressure sensor. PCT CA2024050026 / WO2024/148433 Dual Fuel Injection System, owner DIESEL TECH INDUSTRIES LTD. ERA: co-combust hydrogen and diesel in existing engines; class 7 and class 8 HDV/MDV; Active demonstration, $3.9 million project, $1.91 million ERA. Alberta Innovates: reduce truck GHG, SOx, NOx and particulates by up to 50%; $900,000; 1 Jan 2023 – 30 Aug 2024. City of Edmonton 17 Aug 2023 Cummins 9 L pilot. YEG 24 Apr 2025 two runway snow sweepers (conversion from spring 2025). Census diesel–hydrogen retrofit kits. Demonstration / commercializing — listed as supply. Extra named onboard H2 storage vessels are kit hardware, not a cylinder mill. Extra industrial-gases desk not used (does not mill merchant hydrogen). Extra truck-trailer desk not used (kits, not trucks). Extra power-equipment desk not used. Not Hydra Energy (later census). Not Azolla Hydrogen Ltd. (live). NAICS Canada 2022 336390 Other motor vehicle parts manufacturing (illustrative example exhaust systems and parts, automotive, truck and bus, manufacturing / filters internal combustion engine manufacturing). CBSA 84.09 Parts suitable for use solely or principally with engines of heading 84.07 or 84.08 — 8409.99.00 Other (T2026 ch.84 heading 84.09; HS6 840999). ISED 840999 Parts for diesel and semi-diesel engines. ISED CID 2024 major importers for HS 840999 do not name Diesel Tech Industries Ltd. (golden copy 31 Aug 2026). Container-ready. Could truck. No named directory seaport. Export unconfirmed as a named directory seaport load.