emissions from flights that are not covered by Directive 2003/87/EC represent only a very minor part of the total greenhouse gas emissions, and establishing a reporting system for these emissions would be unduly burdensome in the light of existing requirements for the wider sector pursuant to Directive 2003/87/EC.
Níl in astaíochtaí CO2 ó eitiltí nach gcumhdaítear le Treoir 2003/87/CE ach sciar an-bheag de na hastaíochtaí iomlána gás ceaptha teasa, agus ba róthrom an t-ualach córas tuairiscithe a bhunú do na hastaíochtaí sin i bhfianaise na gceanglas atá ann cheana don earnáil ina hiomláine de bhun Threoir 2003/87/CE.