Parties challenging Dublin Airport passenger cap agree questions for EU court

Court of Justice of the EU takes an average of 16 months to rule on such matters referred by national courts

Aer Lingus, Ryanair and Airlines for America are challenging the Irish Aviation Authority’s (IAA’s) imposition of passenger caps at Dublin Airport. Photograph: The Irish Times
Aer Lingus, Ryanair and Airlines for America are challenging the Irish Aviation Authority’s (IAA’s) imposition of passenger caps at Dublin Airport. Photograph: The Irish Times

Airlines and other parties involved in a series of challenges to seasonal passenger caps at Dublin Airport have agreed certain legal issues must be clarified by the Court of Justice of the EU (CJEU), which takes an average of 16 months to provide a ruling.

Mr Justice Barry O’Donnell thanked the litigants for reaching agreement on the scope of EU law questions they feel need to be determined before the High Court can give a final ruling.

He said there was “simply no way for these cases to be determined without clarity” on European law points.

Aer Lingus, Ryanair and Airlines for America, which represents US carriers, are challenging the Irish Aviation Authority’s (IAA’s) imposition of passenger caps at Dublin Airport for the winter and summer seasons.

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Eoin McCullough SC, for the IAA, said that, if the judge is satisfied with the facts outlined in the parties’ referral document, there may be no need for him to hear the challenges before the CJEU gives its answers.

All of the cases had been due to be heard this week.

While taking into account the parties’ agreed wording, Mr Justice O’Donnell will decide the ultimate form of questions to be referred to the Luxembourg-based court, whose interpretation of European law is binding throughout member states. He said he intends to make a final decision on the reference within a matter of days.

The proposed questions relate to interpretation of the EU’s Slot Regulation, which imposes rights and rules regarding airlines’ take-off and landing slots at European airports.

The parties recommend asking, among other things, whether the Slot Regulation allows or requires the IAA to take into account a planning authority-imposed annual passenger cap when assessing Dublin Airport’s capacity.

Last month Mr Justice O’Donnell granted an urgent pause to the effects of the IAA’s decision to limit passenger numbers to 25.2 million for the summer period, which runs from late March to October. The move prevented the IAA cap from being applied to a process of allocating the airport’s summer take-off and landing slots.

His order is due to last until the High Court cases are resolved.

On Wednesday Mr McCullough told the court it “may take some time” for the CJEU to rule and the answers may not come until after the summer 2025 period has passed and his client, the IAA, has to make a further assessment of Dublin Airport’s capacity.

The parties may need to discuss what position should be taken while the EU court’s decision is pending, he said, adding that there could be a need to raise this with the court.

In deciding to impose winter and summer passenger caps, the IAA said it considered technical, operational, environmental and local planning constraints, including An Bord Pleanála’s imposition of a separate annual 32 million passenger limit when it approved Terminal Two in 2007.

The airlines claim there was no basis for the IAA to have incorporated the 2007 planning condition in its assessment of the airport’s capacity. They said their right to certain legacy take-off and landing slots would be jeopardised if the IAA summer cap took effect.

The DAA has separately challenged the IAA’s 14.4 million seat cap for the winter period, which runs until March 2025, alleging it is not restrictive enough to prevent the airport from breaching the 2007 planning condition.

The operator has said the EU slot regulation prohibits it from “unilaterally” reducing passenger numbers to comply with the planning condition. The DAA has separately applied to the local planning authority, Fingal County Council, seeking an increase of the 32 million limit to 40 million.

Ellen O'Riordan

Ellen O'Riordan

Ellen O'Riordan is High Court Reporter with The Irish Times