Directive 2003/55/EC of the European Parliament and of the Council of 26 June 2003 concerning common rules for the internal market in natural gas and repealing Directive 98/30/EC Basic information Dates Date of document: Date of publication: Date of effect: August 4, 2003 Entry into force - Date pub. + 20 See Art 34 Date of transposition: July 1, 2004 At the latest See Art 33.1 Date of end of validity: Modified by Corrected by: Repealed by: Modifies Repeal: Affected by case Judgment of the Court (Grand Chamber) of 20 April 2010. Federutility and Others v Autorità per l'energia elettrica e il gas. Reference for a preliminary ruling: Tribunale amministrativo regionale per la Lombardia - Italy. Directive 2003/55/EC - Internal market in natural gas - State intervention on the price for the supply of natural gas after 1 July 2007 - Public service obligations of undertakings operating in the gas sector. Case C-265/08. Judgment of the Court (Fourth Chamber), 23 October 2014. Alexandra Schulz v Technische Werke Schussental GmbH und Co. KG and Josef Egbringhoff v Stadtwerke Ahaus GmbH. Requests for a preliminary ruling from the Bundesgerichtshof. Reference for a preliminary ruling — Directives 2003/54/EC and 2003/55/EC — Consumer protection — Internal market in electricity and natural gas — National legislation determining the content of consumer contracts covered by a universal supply obligation — Unilateral adjustment of the price of the service by the seller or supplier — Information, with adequate notice before the adjustment comes into effect, as to the reasons and preconditions for that adjustment and its scope. Joined Cases C‑359/11 and C‑400/11. Judgment of the Court (Second Chamber) of 17 July 2008. ASM Brescia SpA v Comune di Rodengo Saiano. Reference for a preliminary ruling: Tribunale amministrativo regionale per la Lombardia - Italy. Articles 43 EC, 49 EC and 86 EC - Concession for a public gas-distribution service - Directive 2003/55 - Early cessation at the end of a transitional period - Principles of the protection of legitimate expectations and legal certainty. Case C-347/06. Judgment of the Court (First Chamber), 21 March 2013. RWE Vertrieb AG v Verbraucherzentrale Nordrhein-Westfalen eV. Request for a preliminary ruling from the Bundesgerichtshof. Directive 2003/55/EC — Internal market in natural gas — Directive 93/13/EEC — Articles 1(2) and 3 to 5 — Contracts between suppliers and consumers — General conditions — Unfair terms — Unilateral alteration by the supplier of the price of the service — Reference to mandatory legislation designed for another category of consumers — Applicability of Directive 93/13 — Obligation of use of plain and intelligible language and transparency. Case C‑92/11. Case C-347/06: Judgment of the Court (Second Chamber) of 17 July 2008 (reference for a preliminary ruling from the Tribunale amministrativo regionale per la Lombardia (Italy)) — ASM Brescia SpA v Comune di Rodengo Saiano (Articles 43 EC, 49 EC and 86 EC — Concession for a public gas-distribution service — Directive 2003/55 — Early cessation at the end of a transitional period — Principles of the protection of legitimate expectations and legal certainty) Case C-265/08: Judgment of the Court (Grand Chamber) of 20 April 2010 (reference for a preliminary ruling from the Tribunale Amministrativo Regionale per la Lombardia — Italy) — Federutility, Assogas, Libarna Gas SpA, Collino Commercio SpA, Sadori Gas SpA, Egea Commerciale, E.On Vendita Srl, Sorgenia SpA v Autorità per l’energia elettrica e il gas (Directive 2003/55/EC — Internal market in natural gas — State intervention on the price for the supply of natural gas after 1 July 2007 — Public service obligations of undertakings operating in the gas sector) {AR|http://publications.europa.eu/resource/authority/fd_370/AR} 23.1 {AR|http://publications.europa.eu/resource/authority/fd_370/AR} 3.2 Case C-765/18: Request for a preliminary ruling from the Landgericht Koblenz (Germany) lodged on 6 December 2018 — Stadtwerke Neuwied GmbH v RI annex A point (b) annex A point (c) article 3 paragraph 3 Case C-309/17: Request for a preliminary ruling from the Hanseatisches Oberlandesgericht in Bremen (Germany) lodged on 29 May 2017 — Stadtwerke Delmenhorst GmbH v Manfred Bleckwehl article 3 paragraph 3 annex A point (c) annex A point (b) Legal basis Treaty establishing the European Community (Nice consolidated version) Part Three: Community policies Title VI: Common rules on competition, taxation and approximation of laws Chapter 3: Approximation of laws Article 95 Article 100a - EC Treaty (Maastricht consolidated version) Treaty establishing the European Community (Nice consolidated version) Part Five: Institutions of the Community Title I: Provisions governing the institutions Chapter 2: Provisions common to several institutions Article 251 Article 189b - EC Treaty (Maastricht consolidated version) Treaty establishing the European Community (Nice consolidated version) Part Three: Community policies Title III: Free movement of persons, services and capital Chapter 2: Right of establishment Article 47 Article 57 - EC Treaty (Maastricht consolidated version) Article 57 - EEC Treaty Treaty establishing the European Community (Nice consolidated version) Part Three: Community policies Title III: Free movement of persons, services and capital Chapter 3: Services Article 55 Article 66 - EC Treaty (Maastricht consolidated version) Article 66 - EEC Treaty EuroVoc Vocabulary Energy transport Approximation of laws Internal market - Principles Energy supply Energy Approximation of laws Natural gas Energy distribution Other measures relating to oil or gas Energy production Single market