National legislation in Austria

National strategy frame “Clean energy in the transport sector” = Nationaler Strategierahmen “Saubere Energie im Verkehr”
Parliamentary inquiry regarding transposition of Directive 2015/1513
Ordinance on fuel quality (= Kraftstoffverordnung) referring to ISO 14687–2:2012 regarding purity of hydrogen

EU legislation

Directive 2014/94/EU of the European Parliament and of the Council of 22 October 2014 on the deployment of alternative fuels infrastructure (AFID)
The AFID establishes a common framework of measures for the deployment of alternative fuels infrastructure in the Union in order to minimize dependence on oil and to mitigate the environmental impact of transport.

The Directive sets out minimum requirements for the building-up of alternative fuels infrastructure, including recharging points for electric vehicles and refuelling points for natural gas (LNG and CNG) and hydrogen, to be implemented by means of Member States' national policy frameworks, as well as common technical specifications for such recharging and refuelling points, and user information requirements.

Article 2 defines ‘Alternative fuels’ as fuels or power sources which serve, at least partly, as a substitute for fossil oil sources in the energy supply to transport and which have the potential to contribute to its decarbonisation and enhance the environmental performance of the transport sector. They include, inter alia: hydrogen.

It lays down, in Article 5, that Member States which decide to include hydrogen refuelling points accessible to the public in their national policy frameworks shall ensure that, by 31 December 2025, an appropriate number of such points are available, to ensure the circulation of hydrogen-powered motor vehicles, including fuel cell vehicles, within networks determined by those Member States, including, where appropriate, cross-border links.

Annex II contains technical specifications for hydrogen refuelling points for motor vehicles and additionally lays down that:
• Outdoor hydrogen refuelling points dispensing gaseous hydrogen used as fuel on board motor vehicles shall comply with the technical specifications of the ISO/TS 20100 Gaseous Hydrogen Fuelling specification.
• The hydrogen purity dispensed by hydrogen refuelling points shall comply with the technical specifications included in the ISO 14687-2 standard.
• Hydrogen refuelling points shall employ fuelling algorithms and equipment complying with the ISO/TS 20100 Gaseous Hydrogen Fuelling specification.
• Connectors for motor vehicles for the refuelling of gaseous hydrogen shall comply with the ISO 17268 gaseous hydrogen motor vehicle refuelling connection devices standard.
Council Directive (EU) 2015/652 of 20 April 2015 laying down calculation methods and reporting requirements pursuant to Directive 98/70/EC of the European Parliament and of the Council relating to the quality of petrol and diesel fuels
This Directive establishes the Method for the calculation and reporting of the life cycle greenhouse gas intensity of fuels and energy by suppliers

It establishes the efficiency factor of the hydrogen fuel cell electric powertrain to be 0,4. It also lays down the average life cycle greenhouse gas intensity default values for fuels other than biofuels and electricity. It lays down the GHG intensity of compressed synthetic methane in a spark ignition engine resulting from the Sabatier reaction of hydrogen from non-biological renewable energy electrolysis at 3,3 gCO2eq/MJ (the lowest GHG intensity of the fuels considered) and the Compressed Hydrogen in a fuel cell resulting from the electrolysis fully powered by non-biological renewable energy at 9,1g CO2eq/MJ (second lowest intensity).
ISO 14687–2:2012 Hydrogen fuel – Product specification – Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles.
To secure the hydrogen quality so it does not influence the life time and output from the fuel cells.
SAE J2719_201511 Hydrogen Fuel Quality for Fuel Cell Vehicles
EN 17124:2018 - Hydrogen fuel - Product specification and quality assurance - Proton exchange membrane (PEM) fuel cell applications for road vehicles
EN 17124 specifies the quality characteristics of hydrogen fuel and the corresponding quality assurance in order to ensure uniformity of the hydrogen product as dispensed for utilization in proton exchange membrane (PEM) fuel cell road vehicle systems.