One of the Annexes to the text of the Convention.
a) Appendix I includes all species threatened with extinction which are or may be affected by trade. Trade in specimens of these species must be subject to particularly strict regulation in order not to endanger further their survival and must only be authorized in exceptional circumstances.
b) Appendix II includes:
i) all species which although not necessarily now threatened with extinction may become so unless trade in specimens of these species is subject to strict regulation in order to avoid utilization incompatible with their survival; and
ii) other species which must be subject to regulation in order that trade in specimens of certain species referred to in subparagraph i) above may be brought under effective control [e.g. species that are similar in appearance to those included in Appendix II].
c. Appendix III includes all species which any Party identifies as being subject to regulation within its jurisdiction for the purpose of preventing or restricting exploitation, and as needing the cooperation of other Parties in the control of trade.
The Parties may not allow trade in specimens of species included in Appendices I, II and III except in accordance with the provisions of the Convention.
2. Appendix IV contains the information to be included in a CITES permit or certificate. The Conference of the Parties has adopted a standard CITES permit/certificate model in Resolution Conf. 12.3 (Rev. CoP18) on Permits and certificates.
(Definition from Article II)
French: Annexe (I, II, III et IV) / Spanish: Apéndice (I, II, III y IV)