air carrier mail
as defined in Regulation (EC) No 300/2008 of the European Parliament and of the Council of 11…, Article 3, point (22) (Definitions)
mail whose origin and destination are both an air carrier
as defined in Regulation (EC) No 300/2008 of the European Parliament and of the Council of 11…, Article 3, point (22) (Definitions)
mail whose origin and destination are both an air carrier