Issue 3.00

Issued: 15 August 2023

Effective: on issue


Overseas Territories Aviation Circulars are issued to provide advice, guidance and information on standards, practices and procedures necessary to support Overseas Territory Aviation Requirements.  They are not in themselves law but may amplify a provision of the Air Navigation (Overseas Territories) Order or provide practical guidance on meeting a requirement contained in the Overseas Territories Aviation Requirements.


This Circular provides basic guidance on the use of Human Factor techniques to improve safety at ATS units.  More comprehensive material is available through the sources listed at the end of this document.


This Circular relates to OTAR Parts 172.


Minor editorial changes and new Appendix A.


Enquiries regarding the content of this Circular should be addressed to Air Safety Support International at the address on the ASSI website or to the appropriate Overseas Territory Aviation Authority.