Appeal brought on 31 May 2013 by van der Aat and Others against the judgment of the Civil Service Tribunal of 21 March 2013 in Case F-111/11, van der Aat and Others v Commission

(Case T-304/13 P)

Language of the case: French

Parties

Appellants: Chris van der Aat (Besozzo, Italy), Kamel Abbas (Besozzo), Roberto Accorsi (Ispra, Italy), Fredric Achard (Masciago Primo, Italy), Tuomas Aitasalo (Travedona Monate, Italy), Robert Alabrese (Cuvio, Italy), Daniel Albrecht (Comabbio, Italy), Stefano Alessandrini (Cittiglio, Italy), Marlene Alvarez Alvarez (Besozzo), Salvatore Amato (Lavagna, Italy), Angiola Amore (Angera, Italy), Giuseppe Amoruso (Besozzo), Michel Amsellem (Sangiano, Italy), Fivos Andritsos (Gavirate, Italy), Alessandro Annoni (Laveno, Italy), Massimo Anselmi (Sesto Calende, Italy), Carlo Antoniotti (Orino, Italy), Aldo Ardia (Besozzo), Fernando Arroja (Varese, Italy), Karin Aschberger (Ranco, Italy), Andreas Aschberger (Ranco), Heikki Aulamo (Besozzo), Davide Auteri (Varese), Roberto Babich (Gavirate), Valentino Bada (Ispra), Vagn Bak-Mikkelsen (Angera), Simone Bano (Mornago, Italy), Joaquin Baraibar (Ispra), Vittorio Barale (Vercelli, Italy), Stefano Baranzini (Angera), Thomas Barbas (Varese), Caterina Barbera (Laveno), Marco Barbero (Verbania, Italy), Paulo Barbosa (Ispra), Elena Bardelli (Monvalle, Italy), Renzo Bardelli (Besozzo), Jose Ignacio Barredo Cano (Ispra), Marco Basso (Varano Borghi, Italy), Maurizio Bavetta (Cadrezzate, Italy), Claudio Belis (Ispra), Carlo Bellora (Milan, Italy), Alan Belward (Cittiglio), Zita Bemova (Taino, Italy), Enrico Ben (Varese), Jose Bento Valente (Varese), Claudio Bergonzi (Angera), Walter Bertato (Taino), Paolo Bertoldi (Varese), Luciana Bervoets Rossini (Angera), Emanuela Besozzi Pedroncin (Taino), Rene Beuchle (Ispra), Massimo Bianchi (Marnate, Italy), Pierangelo Biavaschi (Brebbia, Italy), Giovanni Bidoglio (Somma Lombardo, Italy), James William Bishop (Taino), Herve Blanchard (Ispra), Ornella Blo (Casciago, Italy), Fabio Bocci (San Giuliano Terme, Italy), Giuseppe Bof (Ispra), Ottavio Bolchini (Varese), Silvia Bombardone (Verbania), Renato Bonaldo (Ispra), Fabrizio Bonato (Ispra), Laura Bonfini (Sesto Calende), Chiara Boni (Porto Valtravaglia, Italy), Isabelle Borgotti (Ispra), Gilles Bories (Masciago Primo), Ann-Charlotte Boström (Cadrezzate), Pernille Brandt (Besozzo), Olivier Breas (Ranco), Norbert Brinkhof (Besozzo), Norbert Brinkhoff-Button (Ranco), Marco Broglia (Cernusco sul Naviglio, Italy), Davide Brunella (Varese), Bruno Brunori (Besozzo), Roberto Brunotti (Ispra), Philippe Buchet (Biandronno, Italy), Barbara Bulgarelli (Taino), Armin Burger (Brebbia), Janice Cake (Malgesso, Italy), Philip Cake (Malgesso), Francesco Calcerano (Brebbia), Erika Caldarozzi (Laveno Mombello, Italy), Maria Paula Caldeira Guimaraes (Luvinate, Italy), Luisa Calì (Ispra), Luigi Calzolai (Gavirate), Cecilia Campo (Brebbia), Jose Cancelinha (Varese), Daniela Cancellieri (Besozzo), Pierluigi Canevari (Brebbia), Elisabetta Canuti (Caravate, Italy), Natale Cao (Ispra), Valerio Capelli (Angera), Philippe Caperan (Ranco), Guiseppina Carabellò (Varese), Manuela Carcano (Besozzo), Giancarlo Carnielli (Gavirate), Massimo Carriero (Ranco), Eda Carriero (Cadrezzate), Folco Casadei (Barasso, Italy), Juan Casado Poblador (Varano Borghi), Silvia Casati (Angera), Anna Casè (Angera), Roberto Cattalini (Cadrezzate), Fabrizia Cavalli (Angera), Mauro Caviglia (Sesto Calende), Mario Centurelli (Travedona Monate), Alessandra Cerutti (Laveno Mombello), Jean-Marc Chareau (Monvalle), Diana Charels (Cocquio Trevisago, Italy), Fiorella Chennaux (Ranco), Michael Cherlet (Leggiuno, Italy), Frans M. Christensen (Taino), Laura Ciafre’ (Monvalle), Ewa Ciesielska (Ispra), Francis Clement (Leggiuno), Sandra Coecke (Varese), Giacomo Cojazzi (Ispra), Angelo Collotta (Ispra), Ambrogio Colombo (Lonate Pozzolo, Italy), Rinaldo Colombo (Angera, Italy), Michele Conti (Angera), Valeria Contini (Cadrezzate), Maida Contini (Leggiuno), Stephane Cordeil (Besozzo), Johannes Bonefatius Comelissen (Cerro di Laveno, Italy), Raffaella Corvi (Varese), Loredana Costantini-Barresi (Besozzo), Philip Costeloe (Varese), Giulio Cotogno (Rovellasca, Italy), Constantin Coutsomitros (Ranco), Raymond Crandon (Monvalle), Marino Crivelli (Gavirate), Yves Robert Crutzen, (Ranco), Una Cullinan (Malgesso), Leopoldo Da Silva Pestana (Ispra), Felice DaI Bosco (Leggiuno), Carla DaI Molin D’Alessio (Orino), Francesco D’Alberti (Brebbia), Gianfranco De Grandi (Ispra), Johannes De Lange (Bardello, Italy), Arie De Roo (Besozzo), Gaetano De Vita (Ispra), Gerhard De Vries (Ispra), Luc Dechamp (Monvalle), Massimo Della Rossa (Besozzo), Alessandro Dell’Acqua (Carnago, Italy), Franciscus Dentener (Caravate), Marc Detry (Brebbia), Claudio Devisoni (Ispra), Wim Devos (Castelveccana, Italy), Lorenzo Di Cesare (Monvalle), Fabiana Di Fabio (Cocquio Trevisago), Michele Di Franco (Palermo, Italy), Pietro Di Maggio (Ispra), Luisa Diez (Ispra), Hendrik Doerner (Varese), Soledad Dominguez (Travedona Monate), Tijmen Doppenberg (Besozzo), Fernando Manuel Dos Santos Marques (Ispra), Kevin Douglas (Brebbia), Pascal Dransart (Ispra), Ioannis Drossinos (Azzio, Italy), Jean-Noël Druon (Cadrezzate), Matthew Duane (Angera), Gregoire Dubois (Angera), Janja Dugar (Leggiuno), Thierry Dujardin (Osmate, Italy), Ewan Duncan Dunlop, Vergiate (Italy), Torbjon Dyngeland (Malgesso), Zdzislav Dzbikowicz (Taino), Alexander Nicolaas Ebbeling (Monvalle), Patrizia Ebbeling Cerreoni (Monvalle), Andrée Ebser (Porto Valtravaglia), Robert Edwards (Ispra), Adriaan Eeckels (Bardello), Daniele Ehrlich (Malborghetto, Italy), Filippo Elio (Gavirate), Federico Ereno (Osmate), Josè Esteves (Varese), Luciano Fabbri (Pioltello, Italy), Natale Faedda (Ispra), Henrique Fattori (Gavirate), Carlo Ferigato (Baveno, Italy), Fernando Fernandez Espinosa (Ispra), Manuel Ferreira (Laveno Mombello), Michael Field (Besozzo), Jorge Manuel Figueiredo Morgado (Varese), Roberto Fioravazzi (Ispra), Luca Fiore (Varese), Gianluca Fiore (Varese), Christian Folco (Ranco), Claudio Fontanella (Besozzo), Vittorio Forcina (Ranco), Marie-Christine Forment (Bregano, Italy), Fausto Forni (Brebbia), Marina Forte, (Varese), Patrizia Forti (Malgesso), Susanne Fortunato (Besozzo), Romuald Franielczyk (Ispra), Alberto Franzetti (Taino), Fabio Fratino (Besozzo), Marco Luca Frattini (Varese), Santino Frison (Taino), Claudia Fuccillova (Bregano), Karen Fullerton (Sangiano), Salvatore Furfaro (Taino), Alberto Fusari (Malgesso), Nathalie Galfre’ Dumont (Varese), Roberto Galleano (Besozzo), Francisco Javier Gallego Pinilla (Laveno-Mombello, Italy), Ana Gallego Romero (Barasso), Paola Galmarini (Tradate, Italy), Stefano Galmarini (Porto Valtravaglia), Marco Galparoli (Tradate), Anabela Galvao Saraiva (Ranco), Gino Gangale (Caravate), Maurizio Garbin (Comignago, Italy), Garcia Luis Garcia Centeno (Ispra), Teofilo Garcia Domingo (Varese), Maurizio Gastaldello (Casciago), Simone Gatti (Milan), Bernd Manfred Gawlik (Sarrebruck, Germany), Marco Gemelli (Massino Visconti, Italy), Cristina Gemo (Varese), Tommaso Genovese (Cocquio Trevisago), Michel Gerboles (Gavirate), Stefania Gerli (Comerio, Italy), Eugenio Gervasini (Varese), Alessia Ghezzi (Varese), Michela Ghiani (Laveno M., Italy), Georgios Giannopoulos (Taino), Peter Neil Gibson (Ispra), Sabrina Gioria (Veruno, Italy), Raimondo Giuliani (Bologne, Italy), Davide Giussani (Leggiuno), Marusca Gnecchi (Gavirate), Joao Gonçalves (Orino), Eddy Gorts (Varese), Caterina Gozzi (Ranco), Jean-Marie Gregoire (Besozzo), Claudius Griesinger (Orino), Carsten Gruenig (Leggiuno), Claude Guillou (Ispra), Jean-Philippe Guisset (Comerio), Laurence Guy-Mikkelsen (Angera), Maria Elizabeth Halder (Besozzo), Stamatia Halkia (Varese), George Ranke (Ranco), Philippe Hannaert (Cittiglio), Isabelle Hariga (Brebbia), Carina Henriksson (Vernazza, Italy), Pierette Henuset Chambefort (Besozzo), Francisco Javier Hervas de Diego (Ispra), Michel Hick (Besozzo), Jens Liengaard Hjorth (Laveno Mombello), Eddo J. Hoekstra (Leggiuno), Johann Hofberr (Laveno Mombello), Marc Charles Hohenadel (Azzate, Italy), Uwe Holzwarth (Taino), Wijbe Horstmann (Ispra), Tania Huber (Cadrezzate), Philippe Hubert (Besozzo), Bogdan Ionescu (Reno di Leggiuno), Henrique Jaecques (Ranco), Kathleen James (Angera), Annett Janunsch Roi (Laveno Mombello), Dominique Jassogne (Angera), Niels Roland Jensen (Ispra), Francesco Joudioux (Varese), Ilmo Kalkas (Cadrezzate), Kristina Kalkas (Cadrezzate), Ioannis Kannellopoulos (Besozzo), Simon Kay (Besozzo), Robert Kenny (Cittiglio), Hervè Kerdiles (Monvalle), Raoul Kiefer (Varese), Françoise Kievits (Luvinate), Agnieszka Kinsner Ovaskainen (Travedona Monate), Manfred Kohl (Cadrezzate), Jan Kozempel (Uhersky Brod, Czech Republic), Elisabeth Krausmann (Angera), Pascal Kupper (Brebbia), Jurgita Kurganiene (Ispra), Donato Lacerenza (Ternate, Italy), Salvatore Laganga (Ispra), Friedrich Lagler (Besozzo), Izabella Lahodynsky (Leggiuno), Gaston Francisco Lanappe (Varese), Ingrid Langezaal (Orino), Eric Yann Lazarus (Ispra), Peter Lazzari (Laveno Mombello), Philippe Le Lijour (Leggiuno), Bernadette Legros (Taino), Massimo L’Episcopo (Ispra), Dominique Leriche (Laveno Mombello), Dominique Lesueur (Varese), An Lievens (Brebbia), Amin Lievens (Angera), Jacobus Ligthart (Luino, Italy), Jens Patrick Linge (Gavirate), Giovanni Locoro (Lonate Ceppino, Italy), Per Andreas Loekkemyhr (Brebbia), Giovanna Lombardo (Besozzo), Robert Loos (Laveno Mombello), Maciej Lopatka (Angera), Francisco Lopes (Brebbia), Manuel Lozano (Sesto Calende), Luigi Lunardi Bizzarri (Bregano), Shirley Lutz (Ispra), Egidio Macavero (Ispra), Giovanni Macchi (Gavirate), Girolamo Maddi (Laveno Mombello), Carmela Maddi Brunoni (Malgesso), Georges Magonette (Besozzo), Vincent Mahieu (Brussels, Belgium), Giuseppe Angelo Mainardi (Brovello Carpugnino, Italy), Sergio Mainetti (Ispra), Francesca Malgaroli (Paruzzaro, Italy), Rosemarie Marabelli (Gavirate), Barbara Marchetti (Brenta, Italy), Giulio Mariani (Ispra), Alessandro Marotta (Varese), Sebastiao Martins Dos Santos (Cittiglio), Osvaldo Mattana (Lavena Ponte Tresa, Italy), Philippe Mayaux (Laveno, Italy), Matteo Mazzuccato (Legnano, Italy), Wolfgang Mehl (Angera), Frederic Melin (Taino), Katia Menegon (Montebelluna, Italy), Giovanni Mercurio (Varese), Eva Merglova (Laveno Mombello), Giuseppe Merlo (Cerretto Langhe, Italy), Fabio Micale (Ispra), Roberto Miglini (Monvalle), Anne Milcamps (Gavirate), Pascal Millan (Varese), Michel Millot (Orino), G. Franco Minchillo (Varese), Apollonia Miola (Varese), Silvana Mistri (Brebbia), Javier Molina Ruiz (Osmate), Umberto Montaretto Marullo (Castel Rozzone, Italy), François Montigny (Barasso), Giuseppe Morelli (Besozzo), Sergio Mota (Ispra), Paolo Mozzaglia (Ranco), Friedrich Muehlbauer (Varese), Harald Muellejans (Induno Olona, Italy), Sharon Munn (Besozzo), Rino Tiziano Nangeroni (Malgesso), Luciano Nannucci (Ranco), Vito Nardo (Angera), Fabrizio Natale (Gavirate), Paul Nauwelaers (Casciago), Remedios Navas Castro (Cocquio Trevisago), Paolo Negro (Sesto Calende), Francesca Neviani (Varese), Nicholas Charles Nicholson (Laveno Mombello), Birgit Nickel (Monvalle), George Nicol (Cuvio), Tonny Nielsson (Taino), Hans Nieman (Brebbia), Ole Norager (Laveno Mombello), Jean-Pierre Nordvik (Cocquio Trevisago), Francesco Noseda (Leggiuno), Gianni Novello (Cominago, Italy), Leo Nykjaer (Laveno Mombello), Franco Oliveri (Genova, Italy), Marco Ooms (Sesto Calende), Marie Oskarsson (Leggiuno), Juha Ovaskainen (Travedona Monate), Ramona Pagnottaro (Parme, Italy), Rita Paiola (Ranco), Sazan Pakalin (Varese), Panagiotis Panagos (Monvalle), Arrigo Panizza (Brebbia), Antonio Pannunzio (Besozzo), Rana Pant (Leggiuno), Bruno Paracchini (Ispra), Sergio Paris (Azzio), Alberto Paris (Taino), Rosanna Passarella (Laveno Mombello), Marco Pastori (Brugherio, Italy), Alexandre Patak Dennstedt (Sangiano), Valerio Pedroni (Besozzo), Paolo Peerani (Caravate), Pierre Pegon (Varese), Paolo Pellegrini (Ghiffa, Italy), Grazia Pellegrini (Brebbia), Rogerio Peralta (Gavirate), Domenico Perrotta (Malnate, Italy), Ugo Pesee (Cadrezzate), Georg Peter (Castelletto Ticino, Italy), Paola Piccinini (Turin), Fabio Pieri (Vasanello, Italy), Ronald Piers de Raveshoot (Leggiuno), Tiziano Pinato (Besozzo), Gregor Pinski (Castelletto Ticino), Giuliano Pirelli (Lecce, Italy), Antonio Piscia (Cadrezzate), Paolo Pizziol (Varese), Maria Carmen Pombo Lopez (Casciago), Wietse Post (Taino), Jesus Felix Pozuelo Moreno (Varese), Marsia Pozzato (Sesto Calende), Steven Price (Taino), Pilar Prieto Peraita (Angera), Gioacchino Puccia (Besozzo) Michel Quicheron (Angera), Maria-Antonella Rafaele (Bregano), Alessandra Ravagli (Varese), Diana Rembges (Travedona Monate), Graziano Renaldi (Porto Ceresio, Italy), Fabiano Reniero (Taino), Patrice Richir (Leggiuno), Alessandra Rigamonti (Arcisate, Italy), Maurizio Ristori (Comerio), Luca Riva (Besozzo), Paolo Roggeri (Travedona Monate), Francesco Rossi (Veruno), François Rossi (Cittiglio), Carlo Rovei (Leggiuno), Mauro Roveri (Taino), Espedito Ruotolo (Ispra), Pasquale Salvatore (Angera), Francesco Salvi (Angera), Ilario Santangelo (Osmate), Juan Jose Sanz Ortega (Besozzo), Juan Ignacio Saracho (Ranco), Gianpio Sartorio (Cadrezzate), Antonio Scanga (Dumenza, Italy), Rita Scardigli (Ispra), Stefan Scheer (Caravate), Hans Guenther Schneider (Laveno Mombello), Christiane Schwartz (Varese), Dario Scotto (Varese), Mirco Sculati (Angera), Arcadio Segura Arnau (Ispra), Gianfranco Selvagio (Gallarate, Italy), Fabrizio Sena (Ispra), Chiara Senaldi (Somma Lombardo), Natalia Serra Francisco (Brebbia), René Seynaeve (Besozzo), David Shaw (Cittiglio), Christos Siaterlis (Taino), Gilles Siccardi (Ispra), Anna Maria Silvano (Casciago), Federica Simonelli (Besozzo), Maria Carmen Simonetta (Sesto Calende), Susanna Simonetta (Sesto Calende), Philippe Simons (Sesto Calende), Helle Skejo (Orino), Birgit Sokull-Kluettgen (Ranco), Piero Soldo (Cadrezzate), Pere Soler Legresa (Besozzo), George Solomos (Barasso), Michel Sondag (Ispra), Sandra Sottocorno (Ispra), Peter Spruyt (Castelveccana), Valeria Staltari (Laveno Mombello), Hermann Stamm (Castelveccana), Hans Jürgen Stibig (Fribourg, Germany), Nikolaos Stilianakis (Varese), Adolf Stips (Besozzo), Elena Stringa (Besozzo), Peter Strobl (Besozzo), Marinus Stroosnijder (Cittiglio), Marco Stuani (Cadrezzate), Luc Suetens (Leggiuno), Ewelina Sujka (Varese), Carmen Helena Suleau (Monvalle), Fabio Tamborini (Sesto Calende), Cristina Tarabugi (Cadrezzate), Pietro Tarateo (Comabbio), Vittorio Tarditi (Galliate Lombardo, Italy), G. Piero Tartaglia (Varese), Adrien Taruffi (Leggiuno), Fabio Taucer (Milan), Simona Tavazzi (Ispra), Nigel Georg Taylor (Varese), Roberto Tedeschi (Gavirate), Pierluigi Tenuta (Cadrezzate), An Thijs (Bardello), Mary Claude Thiriat (Ispra), Lionel Thoquer (Leggiuno), Philippe Thunis (Besozzo), Friedemann Timm (Castelveccana), Paolo Timossi (Arquata Scrivia, Italy), Daniel Tirelli (Taino), Salvatore Tirendi (Travedona Monate), Charles Edouard Tixier (Ranco), Daniela Toccafondi (Ispra), Andrea Tognoli (Varese), Pilade Tonini (Ispra), Katalin Toth (Cittiglio), Jutta Triebe (Varano Borghi), Georgios Tzamalis (Athens, Greece), Enrico Vaccarezza (Mercallo, Italy), Ioannis Vakalis (Luvinate), Nadia Valentini (Varese), Angelo Valli (Biandronno), Massimo Valsesia (Paruzzaro), Geertruida Van Os (Varese), Diederik Van Regenmortel (Leggiuno), Serge Vanacker (Besozzo), Sabrina Vanelli (Vergiate), Ludo Vanvolsem (Halle, Belgium), Antonio Vargiu (Cagliari, Italy), Roberto Vasselli (Varese), Patricia Vedovatto (Besozzo), Stefano Venanzi (Bologna), Stefano Venturini (Brenta), Jean Verdebout (Ixelles, Belgium), Cristina Versino (Varese), Ana Lisa Vetere Arellano (Taino), Christina Vlassis (Taino), Vincenzo Vocino (Varese), Jürgen Vogt (Brebbia), Massimiliano Voinich (Besozzo), David Walker (Ranco), Uwe Weng (Besozzo), Helmuth Willers (Besozzo), Ulrike Winter (Ispra), Clemens Wittwehr (Laveno Mombello), Jan Wollgast (Travedona Monate), Maureen Wood (Cuveglio, Italy), Nikolaos Zampoukas (Sesto Calende), Marco Zanni, (Sovere, Italy), Giuseppe Zibordi (Gavirate), Carlo Zonca (Arona, Italy), Salvatore Zoppeddu (Sangiano), Antonio Zorzan (Leggiuno) and Valerie Zuang (Casciago)

(represented by: S. Orlandi, D. Abreu Caldas and J.-N. Louis, lawyers)

Other parties to the proceedings: European Commission and Council of the European Union

Forms of order sought

The appellants claim that the Tribunal should:

Set aside the judgment of the Civil Service Tribunal of the European Union (Third Chamber) of 21 March 2013 in Case F-111/11 Chris Van der Aat and Others v European Commission;

Giving judgment itself,

Declare illegal Article 1 of Annex XI to the Staff Regulations and the methodological manual referred to in Annex I to Regulation No 1445/2007 of 11 December 2007;

    Declare illegal Article 3 of Council Regulation (EU) No 1239/2010 of 20 December 2010 fixing the correction coefficient for the calculation of the remuneration of staff assigned to Varese at 92.3;

    Annul the decisions establishing the applicants’ salary statements drawn up on the basis of the correction coefficient for the town of Varese set out in Council Regulation (EC) No 1239/2010 of 20 December 2010 applicable with effect from 1 July 2010;

    Order the Commission to pay the costs of both sets of proceedings.

Pleas in law and main arguments

In support of the appeal, the appellants put forward the following grounds of appeal.

First ground of appeal, alleging that the Civil Service Tribunal, when it examined the plea in law alleging breach of the obligation to state reasons, erred in law in holding that the Commission could confine itself to referring to Regulation No 1239/2010 ¹ to substantiate its decision to apply a correction coefficient reduced by 4.8 percentage points to 92.3% for the calculation of the appellants’ salaries in Varese, even though the Commission played a decisive role in the laying down of those weightings by assessing the statistical data and the methods used to set those coefficients. Thus, the Commission did not merely apply an act of general application without exercising discretion (paragraphs 27 and 28 of the judgment under appeal).

Second ground of appeal, alleging that the Civil Service Tribunal, when it examined the plea in law alleging breach of the right of access to documents, erred in law in holding that the Commission had no obligation to communicate the information requested by the staff representatives, members of the ‘Technical Group on Salaries’ (TGS), then by the appellants, in response to their claim. Inter alia, the appellants submit that:

in so doing, the Civil Service Tribunal misconstrued, inter alia, the nature of the contested acts, the complex procedure by which the correction coefficients are set which justifies the creation of a TGS, the very existence of that TGS and the subject-matter of the pre-litigation procedure;

the procedure recommended by the Civil Service Tribunal, which requires that the parties concerned must submit a request for access to documents outside the TGS and apply the remedies available to them, breaches the right to an effective remedy given the period in which the access to the documents could be obtained and as the analysis of the technical data will be difficult to carry out by the hundreds of agents concerned individually;

that position further misconstrues the ‘effectiveness’ of the constitution of a TGS and the nature of the lex specialis of the statutory remedies established to contest correction coefficients affecting remuneration.

Third ground of appeal, alleging that the Civil Service Tribunal, when it examined the plea in law alleging a manifest error of assessment, erred in law:

in holding that the disparity between the cost of living in Brussels and that in Varese, on the one hand, and the reduction of the correction coefficient of Varese as established by Regulation No 1239/2010, on the other, is not enough to support a conclusion that there was a manifest error of assessment and

in requiring that the appellants submit data as relevant and precise as that which only the Commission possesses even though the case-law does not require the production of a body of evidence sufficiently probative as to reverse the burden of proof and the presumption of legality of the contested coefficient.

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¹     Council Regulation (EU) No 1239/2010 adjusting with effect from 1 July 2010 the remuneration and pensions of officials and other servants of the European Union and the correction coefficients applied thereto (OJ 2010 L 338, p. 1).