"What is voluntary today could become compulsory," the bloc's transport commissioner warns, while denying a supply crunch exists. The EU transport commissioner warned that what is voluntary today could become compulsory, highlighting potential jet fuel supply risks. In the absence of a current shortage, the commissioner emphasized that the EU is monitoring the market and would act if supply pressures materialize. Looking ahead, the commissioner's remarks suggest that the EU may consider mandatory jet fuel sharing protocols if market conditions deteriorate, but for now, no immediate supply concerns are evident.