Road planning

This LAP indicates if hydrogen has to follow specific requirements when transported, and if the regulations are different from the transport of other types of gas. It identifes the competent authorities to allocate the routes.


Road Planning provide the municipalities with a clear understanding of the maximum risks that the transport of hazardous substances may cause. Baseline goals are: Transport hazardous substances between major industrial sites and abroad, including in the future, keeping risks for locals along the routes within legal limits, provide clarity to municipalities about what may / may not be built.

Pan-European Assessment:

Hydrogen is considered as any other flammable gas or dangerous good for its transportation. The Agreement of transport of Dangerous Goods by Road applies.
Is it a barrier?
Assessment Severity
Based on industry opinion, route planning is not a barrier at this moment.
There is currently no ADR classified tunnel in Hungary.


Question 1 Are there any specific regulations or restrictions on the road transport of hydrogen? A) Does hydrogen have to follow specific requirements when transported? (e.g. specific types of roads, specific route)
Yes, but not hydrogen–specific: the relevant rules of ADR (transportation of dangerous goods) must be kept. Gaseous hydrogen does not need specific (designated and permitted) route. Liquid hydrogen transport (LH2) would require route permit, but LH2 transport is very rare in Hungary; actually not exist. Beside ADR the General rules of roads (KRESZ) must be kept (e.g.: weight limitation of trucks), but its independent from the transported goods.
Question 1 Are there any specific regulations or restrictions on the road transport of hydrogen? B) Please specify the requirements regarding tunnels, bridges, parking, others
In Hungary there is no or very few limitation regarding to tunnels, bridges, where hydrogen transport is limited.
Question 2 Which authorities are competent to allocate the routes? (and at what level: national, local?)
Compressed gas (CGH2) transport does not need route approval. In case of liquid hydrogen (LH2) county level transport authority is competent in route permit, but LH2 transport is practically does not exist in Hungary. The so called EKÁER (Electronic Public Road Trade Control System) must be applied by every participants (above 3,5 t) of the transport sector, but this is related to road tolls, and not the transported goods (a taxation issue).
Question 3 Are the regulations differing from the transport of other types of gas?
Just partly: general ADR rules must be applied for hydrogen just the same way as for flammable gases. Difference could occur for toxic gasses, where more stringent restrictions can appear.
Describe the comparable technology and its relevance with regard to hydrogen
Any technical gasses and/or flammable gasses.

National legislation:

EU Legislation: