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About ICAO
About ICAO
  • Overview
  • Strategic Plan 2026-2050
  • Latest News and Highlights
  • FAQs
  • List - ICAO Member States
  • ICAO Museum
  • ICAO Carbon Calculator
  • Report Misconduct
  • Contact ICAO
Diplomatic Bodies
  • ICAO Assembly (193 States)
  • Sessions of the Assembly
  • Resolutions in Force
  • ICAO Council (36 States)
  • President of the Council
  • Sessions of the Council
  • Council State Representatives
  • Air Navigation Commission
ICAO Secretariat
  • Secretary General
  • Air Navigation Bureau
  • Air Transport Bureau
  • Capacity Development and Implementation Bureau
  • Legal Affairs and External Relations Bureau
  • Administration Bureau
  • Regional Offices
Global Priorities
Strategic Goals
  • Every Flight is Safe and Secure
  • Aviation is Environmentally Sustainable
  • • CORSIA
  • • State Action Plans for Aviation CO2 Reduction
  • • Finvest Hub
  • Seamless, Accessible, and Reliable Mobility
  • No Country Left Behind
  • • Capacity Development and Implementation Support
  • Comprehensive Legal Framework
  • Economic Development
Enablers
  • ICAO Continuous Improvement
  • Innovation in Aviation
  • Next Generation Aviation Professionals
  • Gender Equality
  • ICAO Global Ambassadors Programme
  • ICAO Training
  • Partnerships and Resource Mobilization
Events
Featured Events
  • ICAO/AWG Joint Regional Workshop on Cross-Border Transferability of Aircraft (XBT) and Compliance with the Cape Town Convention (CTC)
  • ICAO Global Implementation Support Symposium 2026
  • Fourteenth Meeting of the Facilitation Panel (FALP/14)
  • 4th Civil Aviation Legal Advisers Forum (CALAF/4)
  • View the Full List of Coming and Past meetings and Events
  • Host your event at ICAO
Resources
Resources
  • ICAO E-Library
  • Publications
  • Annual Reports of the Council
  • Safety Audit Results - Interactive
  • Aviation Benefits Report
  • Economic Facts and Figures
  • Global Aviation Safety Plan
  • Safety Reports
  • Global Air Navigation Plan
  • Air Navigation Reports
  • ICAO Partnership Programme
  • ICAO API Data Service
  • ICAO Data+
  • ICAO iSTARS
  • Air Transport Monthly Monitor
  • Compendium: Competition Policies/Practices
  • Economic Analyses and Forecasting
  • Databases and Studies
  • Environment Reports
  • Environment Publications
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  • ICAO GIS Aviation Data
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Breadcrumb

  1. Homepage
  2. Asia and Pacific (APAC) Office
  3. Role of RSO
Overview
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ANS Implementation
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Recent
  • The ICAO Webinar for China
  • Global Symposium on the Implementation of Innovation in Aviation
  • GBAS/SBAS Implementation Workshop
  • International Civil Aviation Day – 7 December
  • PBN AIRSPACE DESIGN WORKSHOP

Role of RSO

RSO complements the APAC RO and provides service to 39 APAC States, but slightly different in roles. RSO is focusing on the capacity building of Air Traffic Management(ATM) capabilities in the region. RSO monitors the current implementation, conducts gap analysis between the global /regional roadmap and updates implementation status of APAC States.

RSO addressed the need of States and has provided technical guidance to the APAC States for a smooth transition from traditional Navigation to RNAV and then to RNP through formulating PBN roadmap, updating technical standards, sharing advanced experience, and providing On-Job-Training and go team missions. Shorter procedures will provide fuel saving and reduce CO2 emissions.

The congested oceanic areas of South East Asia and South Asia called for a collaborative approach for more efficient ATS routes and procedures. RSO has focused on ATS routes planning coordination in busy areas including Bay of Bengal, Indian Ocean, South-East Asia and South China Sea through establishment of long-term coordination mechanism with all concerned States and International Organizations. To emphasize the importance of Safety management in ATM process transitions, RSO held various ATM workshops on  Safety culture, Safety Assessment, Flight Inspection/ Validation, wake Turbulence Re-categorization (RECAT) for APAC states.

Long-term global aspirational goal (LTAG)

The 41st ICAO Assembly adopted LTAG for international aviation of net-zero carbon emissions by 2050 in support of the UNFCCC Paris Agreement's temperature goal. The adopted Resolution A41-21 is available here. 

The LTAG work is summarized in the diagram below: 

An improved ATM will improve operations in the air and on the ground and thus reduced CO2 emissions. The work of RSO is then part of this big picture of LTAG.

Source : https://www.icao.int/environmental-protection/Pages/LTAG.aspx

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