Definition of 1A3a Civil Aviation Source Category
Emissions from international civil aviation and domestic air transport (commercial, private, agricultural, etc.), including take-offs and landings. Exclude use of fuel at airports for ground transport which is reported under 1 A 3 e Other Transportation (below). Also exclude fuel for stationary combustion at airports; report this information under the appropriate stationary combustion category.
Intergovernmental Panel on Climate Change (IPCC), Revised 1996 Guidelines for National Greenhouse Gas Inventories. Houghton, J.T., Meira Filho, L.G., Lim, B., Tréanton, K., Mamaty, I., Bonduki, Y., Griggs, D.J. and Callander, B.A. (Eds).. IPCC/OECD/IEA, 1997.
Available online at: http://www.ipcc-tfi.iges.or.jp/public/gl/invs1.html