24.6.2014 Official Journal of the European Union L 183/135 COMMISSION IMPLEMENTING DECISION of 23 June 2014 on additional historical aviation emissions and additional aviation allowances to take into consid- eration the accession of Croatia to the European Union (Text with EEA relevance) (2014/389/EU) THE EUROPEAN COMMISSION, Having regard to the Treaty on the Functioning of the European Union, Having regard to the Act of Accession of Croatia (!), and in particular Section 10()(1)(a) of Annex V thereof, Whereas: (1)  Point (i) of Section 10(I)(1)(a) of Annex V to the Act of Accession of Croatia concerning the inclusion of all flights between two aerodromes situated in the Croatian territory, and all flights between an aerodrome situated in the Croatian territory and an aerodrome situated in a country outside the EEA area (hereinafter referred to as ‘additional aviation activities) sets out that, by way of derogation from Article 3c(2) of Directive 2003/87/EC of the European Parliament and of the Council (3, the period referred to in Article 13(1) of that Directive and begin- ning on 1 January 2013 shall start on 1 January 2014 for the additional aviation activities. (2)  Pursuant to point (ii) of Section 10(I)(1)(a) of Annex V to the Act of Accession of Croatia, by way of derogation from Article 3c(4) of Directive 2003/87[EC, the Commission shall decide, following the procedure referred to in that same provision, on the historical aviation emissions for the additional aviation activities within a period of six months from the date of accession. (3)  The total quantity of allowances to be allocated to aircraft operators is defined as a percentage of historical avia- tion emissions. Point (s) of Article 3 of Directive 2003/87/EC defines historical aviation emissions as the mean average of the annual emissions in the calendar years 2004, 2005 and 2006 from aircraft performing an aviation activity listed in Annex I to that Directive. Article 3¢(2) of that Directive provides that the total quantity of allow- ances to be allocated to aircraft operators should be calculated on the basis of that historical average. (4)  The Commission has been assisted by Eurocontrol, in accordance with Article 18b of Directive 2003/87/EC, in the calculation of historical aviation emissions for the additional aviation activities. The best available data for the calculation of the historic emissions was considered to be the comprehensive air traffic data contained in Euro- control’s databases from the Central Route Charges Office and the Central Flow Management Unit. Those provide the actual route length for each individual flight. Emissions were then calculated on a flight-by-flight basis using the Abatement of Nuisances Caused by Air Transport 3 methodology and the Calculation of Emissions by Selec- tive Equivalence methodology. That approach to calculating historic emissions was further enhanced through use of actual fuel consumption information provided voluntarily by a representative number of aircraft operators in order to validate the results. (5)  The annual emissions of additional aviation activities in the calendar year 2004 from aircraft performing an avia- tion activity set out in Annex I to Directive 2003/87/EC is considered to be 114 024 tonnes of CO,. The annual emissions in the calendar year 2005 from such aircraft is considered to be 126 827 tonnes of CO,, and the annual emissions in the calendar year 2006 from such aircraft is considered to be 127 120 tonnes of CO,. The historical aviation emissions are 122 657 tonnes of CO,. (6)  Pursuant to point (viii) of Section 10(I)(1)(a) of Annex V to the Act of Accession of Croatia, by way of derogation from point (d) of Article 3e(3) of Directive 2003/87/EC, for the additional aviation activities, the number of () OJL112,24.4.2012,p. 6. (%) Directive 2003/87/EC of the European Parliament and of the Council of 13 October 2003 establishing a scheme for greenhouse gas emis- sion allowance trading within the Community and amending Council Directive 96/61/EC (O] L 275, 25.10.2003, p. 32).