This document aims to guide CITES Scientific Authorities in how to complete NDFs for CITES-listed snakes. These NDF Guidelines are separated into two parts:

i) The first part is the basic NDF Guidelines, which offers an overview of (1) how non-detriment is best determined, (2) the management context for snakes, and provides (3) step-by-step NDF Guidance on how to evaluate whether harvest and trade is non-detrimental. The NDF Guidelines are aimed at simplicity, and contain the bare minimum information Scientific Authorities need to complete an NDF for snakes – they are essentially the “what is needed to complete an NDF”.

ii) The second part is an Annex that provides further information, discussion of conceptual issues, and more a detailed explanation on how to carry out NDFs and implement monitoring and management programs. Parties are encouraged to refer closely to the Annexes when using the NDF Guidance.