Despite being as old as European integration itself, State aid rules continue to prompt questions. In the newest issue of the European State Aid Law Quarterly we look at some of these challenges as they affect the Port sector, Public aid and Operating aid in the Airport sector, Selectivity in Corporate Taxation, Tax Reductions for e-publications, Tenders as an exclusion factor and considerations on the eventful FIH Judgment.

Two recent CJEU cases are analysed: the difficulty of defining a reference tax system in the final chapter of Heitkamp BauHolding (C-203/16 P), and the Spanish Tax Lease System (C-128/16 P). EStAL 3/2018 also brings the latest news from Denmark, Finland, Hungary and Ireland.