Questione giuridica chiave
Whether the appeal in public law matters was admissible despite the customs-law exclusion in Art. 83 lit. l BGG.
Decisione estratta
The exclusion did not apply because the case concerned retroactive certification of export clearance, not a customs valuation based on tariff or weight.
Motivazione estratta
The dispute was about late export documentation for two aircraft exports, so the statutory exception to appellate review was not met.