In the former case, the contested surcharge could be categorised as a charge having equivalent effect within the meaning of Article 25 EC, and in the latter as discriminatory internal taxation under Article 90 EC.
Esimesel juhul on kõnealune hinnatõus määratletav samaväärse toimega maksuna EÜ artikli 25 tähenduses ja teisel juhul diskrimineeriva riigimaksuna EÜ artikli 90 tähenduses.