CAEP Reports  

​​Integrated goals (Noise and Emissions)
 

• Doc 10127  - Independent Expert Integrated Technology Goals Assessment and Review for Engines and Aircraft, 2019. 

 ​​Noise

• Annex 16 to the Convention on International Civil Aviation — Environmental Protection Volume I — Aircraft Noise
• Environ​mental Technical Manual on the use of Procedures in the Noise Certification of Aircraft (Doc 9501, Volume I) This document is an unedited advance version of an ICAO publication as approved, in principle, by the Secretary General, which is made available for convenience. The final edited version may still undergo alterations in the process of editing. Consequently, ICAO accepts no responsibility or liability of any kind should the final text of this publication be at variance with that appearing here.
• ICAO Doc 9888 - Noise Abatement Procedures: Review of Research, Development and Implementation Projects - Discussion of Survey Results, 2010
• ICAO Doc 9184 - Airport Planning Manual, Part 2 — Land Use and Environmental Control
• ICAO Doc 9911 - Recommended Method for Computing Noise Contours around Airports
• ICAO Doc 9829 - Guidance on the Balanced Approach to Aircraft Noise Management
• Presentation on The Balanced Approach to Aircraft Noise Management
• Helicopter Noise Reduction Technology, Status Report, April 2015
• Economic Implications of Future Noise Restrictions on Subsonic Jet Aircraft (Circ 218)    

Aircraft Engine Emissions

• Annex 16 to the Convention on International Civil Aviation — Environmental Protection, Volume II — Aircraft Engine Emissions
• Environmental Technical Manu​al Volume II – Procedures for the Emissions Certification of Aircraft Engines (Doc 9501). This document is an unedited advance version of an ICAO publication as approved, in principle, by the Secretary General, which is made available for convenience. The final edited version may still undergo alterations in the process of editing. Consequently, ICAO accepts no responsibility or liability of any kind should the final text of this publication be at variance with that appearing here​ .​
• Annex 16 to the Convention on International Civil Aviation — Environmental Protection, Volume III — Aeroplane CO2 Emissions
• Environmental Technical Manu​al Volume​ III – Procedures for the CO2 Emissions Certification of Aeroplanes (Doc 9501). This document is an unedited advance version of an ICAO publication as approved, in principle, by the Secretary General, which is made available for convenience. The final edited version may still undergo alterations in the process of editing. Consequently, ICAO accepts no responsibility or liability of any kind should the final text of this publication be at variance with that appearing here​​.​​
• nvPM Che​cklist v1  -  A checklist has been developed by ICAO, through CAEP, to support engine manufacturers and certification authorities to verify compliance of the nvPM measurements with ICAO Annex 16 Volume II.
• ICAO Doc 9963 - Report of the Independent Experts on the Medium and Long Term Goals for Aviation Fuel Burn Reduction From Technology, 2010
• ICAO Doc 9953 - Review and the Establishment of Medium and Long Term Technology Goals for NOx, 2010 (Doc 9953)   
• ICAO Doc 9948 - Scoping Study on the Application of Emissions Trading and Offsets for Local Air Quality in Aviation, First edition, 2011(Doc 9948)
• ICAO Doc 9884 - Guidance on Aircraft Emission Charges Related to Local Air Quality (Doc 9884)
• ICAO Doc 9885 - Draft Guidance on the use of Emissions Trading for Aviation (Doc 9885)
• ICAO Doc 9887 - Independent Experts NO_x Review and the Establishment of Medium and Long Term Technology Goals for NO_x (Doc 9887)
• r NO_x Presentation (PDF)
• ​Airport Air Qu​ality Manual (Doc 9889) DISCLAIMER -​This document is an unedited, advance version of an ICAO publication as approved, in principle, by the Secretary General, which is made available for convenience. The final edited version may still undergo alterations in the process of editing. Consequently, ICAO accepts no responsibility or liability of any kind should the final text of this publication be at variance with that appearing here.
• ICAO Doc 9082 - ICAO's Policies on Charges for Airports and Air Navigation Services (Doc 9082)
• Report of the Independent Experts to CAEP/8 on the Second NOx
• Guidelines on the use of Procedures in the Emissions Certification of Aircraft Engines (PDF)
• Collected Voluntary Activities Against Global Warming (PDF)
• Template and Guidance on Voluntary Measures, 2004 (PDF)

CORSIA

• Annex 16 to the Convention on International Civil Aviation — Environmental Protection, Volume IV - CORSIA
• Environmental Technical Manu​al Volume IV–  Procedures for demonstrating compliance with the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) (Doc 9501).
• CORSIA Implementation Elements (14 ICAO documents)

Sustainable Aviation Fuels 

• ICAO Review: Sustainable Alternative Fuels for Sustainable Aviation, October 2011 (PDF)
• Feasibility Study on the use of Sustainable Aviation Fuels - Dominican Republic​, 2017 (PDF)
• Feasibility Study on the use of Sustainable Aviation Fuels - Trinidad and Tobago, 2017 (PDF)
• Feasibility Study on the use of Sustainable Aviation Fuels - Burkina Faso, 2018 (PDF)
• Feasibility Study on the use of Sustainable Aviation Fuels - Kenya, 2018 (PDF)
• Sustainable Aviation Fuels Guide, 2017 (PDF)

Airports and operations 

Databases

• ICAO Engine Exhaust Emissions Data Bank (Doc 9646)
  • Note: Doc 9646 was published in 1995 and contains information available as of October 1993. The Data Bank has since been further developed in electronic form and is accessible from this link.
• ICAO Noise Data Bank (NoiseDB)
  • Note: The NoiseDB Data Bank has been developed in electronic form and is accessible from this link.
• ANP legacy data | EASA
• www.boeing.com/commercial/noise/

ICAO Environmental Reports

• ICAO Environmental Report, 2025
• ICAO Environmental Report, 2022
• ICAO Environmental Report, 2019
• ICAO Environmental Report, 2016
• ICAO Environmental Report, 2013
• ICAO Environment Report, 2010
• ICAO Environment Report, 2007  

Others 

ICAO Journals (PDF)

Over the years, various editions of the ICAO Journal have focused on civil aviation and the environment:

1992 to 2005 (Djvu format)

• August 1992,
• March 1996 (PDF),
• September 1999,
• June 2001,
• March-April 2004,
• August 2004,
• March 2005,
• July/August 2005,
• September/October 2005 

2006 to 2011 (PDF format) 

• January/February 2006,
• May/June 2006,
• July/August 2006,
• September/October 2006,
• November/December 2006,
• March/April 2007,
• Volume 62, No. 4, 2007,
• Volume 62, No. 5, 2007,
  Volume 63, No. 1, 2008,
• Volume 63, No. 2, 2008,
• Volume 63, No. 4, 2008,
• Volume 63, No. 6, 2008,
• Volume 64, No. 1, 2009,
• Volume 64, No. 4, 2009,
• Volume 64, No. 5, 2009,
• Volume 64, No. 6, 2009,
• Volume 65, No. 3, 2010,
• Volume 65, No. 6, 2010,
• Volume 66, No. 2, 2011,
• Volume 66, No. 3, 2011,
• Volume 66, No. 6, 2011.

Articles on specific environment-related topics also appear in the Journal from time to time.