L 221/8 Official Journal of the European Union 19.8.2008 COMMISSION REGULATION (EC) No 820/2008 of 8 August 2008 laying down measures for the implementation of the common basic standards on aviation security (Text with EEA relevance) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Regulation (EC) No 2320/2002 of the European Parliament and the Council of 16 December 2002 establishing common rules in the field of civil aviation security (1) and in particular Article 4(2) thereof, Whereas: The Commission is required, by virtue of Article 4(2) of Regulation (EC) No 2320/2002, when necessary, to adopt measures for the implementation of common basic standards for aviation security throughout the Community. Commission  Regulation (EC) No 622/2003 of 4 April 2003 laying down measures for the implementation of the common basic standards on aviation security (3) was the first act laying down such measures. Regulation (EC) No 622/2003 has been amended 14 times since its adoption. In the interests of clarity and rationality it is appropriate to consolidate all amendments into a new regulation. Article 8(1) of Regulation (EC) No 2320/2002 provides that the implementing measures adopted by the Commission pursuant to Article 4(2) of that regulation shall be secret and not be published when they relate to performance criteria and acceptance tests for equipment, to detailed procedures concerning sensitive information or to detailed criteria for exemption from security measures. Article 3 of Regulation (EC) No 622/2003 further provides that the implementing measures set out in its Annex shall be secret, not be published and be made available only to persons duly authorised by a Member State or the Commission. Subsequent () OJ L 355, 30.12.2002, p. 1. Regulation as amended by Regulation (EC) No 849/2004 (O] L 158, 30.4.2004, p. 1, as corrected by OJ L 229, 29.6.2004, p. 3). () OJ L 89, 5.4.2003, p. 9. Regulation as last amended by Regulation (EC) No 3582008 (O] L 111, 23.4.2008, p. 5). amendments to Regulation (EC) No 622/2003 have stipulated that this provision will apply to such amendments. In order to improve the transparency of the implemen- ting measures which it has adopted so far pursuant to Article 4(2) of Regulation (EC) No 2320/2002, the Commission has reviewed the measures contained in the Annex to Regulation (EC) No 622/2003, as succes- sively amended, in the light of the criteria set out in Article 8(1) of Regulation (EC) No 2320/2002. This review has shown that many of those measures need not be kept secret and should therefore be published in the Official Journal of the European Union. It remains essential, nevertheless, to keep secret certain measures, the disclosure of which could facilitate their circumvention and the perpetration of acts of unlawful interference. Such measures include, in particular, certain detailed procedures, and exemptions therefrom, concerning the screening of vehicles entering security restricted areas, the search of aircraft and of passengers, the treatment of disruptive passengers, the screening of unaccompanied hold baggage and of hold baggage using explosive detection systems and the control of cargo and mail, as well as the technical specifications for screening equipment. These measures should be adopted separately, by means of a decision addressed to all Member States. A distinction should be permitted between airports in the light of local risk assessment. Therefore, the Commission should be informed of airports that are considered to present a smaller risk. Implementing measures should also be permitted to vary according to the type of aviation activity. The Commission should be informed when compensatory measures are applied to ensure equivalent levels of security. The measures provided for in this Regulation are in accordance with the opinion of the Committee on Civil Aviation Security,