30.4.2004 Official Journal of the European Union L 140/1 I (Acts whose publication is obligatory) COMMISSION REGULATION (EC) No 794/2004 of 21 april 2004 implementing Council Regulation (EC) No 659/1999 laying down detailed rules for the application of Article 93 of the EC Treaty THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Council Regulation (EC) No 659/1999 of 22 March 1999 laying down detailed rules for the application of Article 93 of the EC Treaty (), and in particular Article 27 thereof, After consulting the Advisory Committee on State Aid, Whereas: (1) ) In order to facilitate the preparation of State aid notifica- tions by Member States, and their assessment by the Com- mission, it is desirable to establish a compulsory notifica- tion form. That form should be as comprehensive as possible. The standard notification form as well as the summary information sheet and the supplementary information sheets should cover all existing guidelines and frameworks in the state aid field. They should be subject to modifica- tion or replacement in accordance with the further devel- opment of those texts. Provision should be made for a simplified system of noti- fication for certain alterations to existing aid. Such simpli- fied arrangements should only be accepted if the Commis- sion has been regularly informed on the implementation of the existing aid concerned. In the interests of legal certainty it is appropriate to make it clear that small increases of up to 20 % of the original budget of an aid scheme, in particular to take account of the effects of inflation, should not need to be notified to the Commission as they are unlikely to affect the Commis- sion’s original assessment of the compatibility of the scheme, provided that the other conditions of the aid scheme remain unchanged. Article 21 of Regulation (EC) No 659/1999 requires Mem- ber States to submit annual reports to the Commission on all existing aid schemes or individual aid granted outside an approved aid scheme in respect of which no specific reporting obligations have been imposed in a conditional decision. OJ L 83,27.3.1999, p. 1. Regulation as amended by the 2003 Act of Accession. 0 For the Commission to be able to discharge its responsi- bilities for the monitoring of aid, it needs to receive accu- rate information from Member States about the types and amounts of aid being granted by them under existing aid schemes. It is possible to simplify and improve the arrange- ments for the reporting of State aid to the Commission which are currently described in the joint procedure for reporting and notification under the EC Treaty and under the World Trade Organisation (WTO) Agreement set out in the Commission’s letter to Member States of 2 August 1995. The part of that joint procedure relating to Member States reporting obligations for subsidy notifica- tions under Article 25 of the WTO Agreement on Subsi- dies and Countervailing measures and under Article XVI of GATT 1994, adopted on 21 July 1995 is not covered by this Regulation. The information required in the annual reports is intended to enable the Commission to monitor overall aid levels and to form a general view of the effects of different types of aid on competition. To this end, the Commission may also request Member States to provide, on an ad hoc basis, additional data for selected topics. The choice of subject matter should be discussed in advance with Member States. The annual reporting exercise does not cover the informa- tion, which may be necessary in order to verify that par- ticular aid measures respect Community law. The Commis- sion should therefore retain the right to seek undertakings from Member States, or to attach to decisions conditions requiring the provision of additional information. It should be specified that time-limits for the purposes of Regulation (EC) No 659/1999 should be calculated in accordance with Regulation (EEC, Euratom) No 1182/71 of the Council of 3 June 1971 determining the rules appli- cable to periods, dates and time limits (2), as supplemented by the specific rules set out in this Regulation. In particu- lar, it is necessary to identify the events, which determine the starting point for time-limits applicable in State aid procedures. The rules set out in this Regulation should apply to pre-existing time-limits which will continue to run after the entry into force of this Regulation. OJ L 124,8.6.1971, p. 1.