Since January 2, 2017 all rosewood types (in latin: Dalbergia) are listed on Cites II.
Also the Spanish Cedar (Cedrela odorata) which is commonly used for guitar necks is listed in CITES Appendix III, and is on the IUCN Red List.
I do not use any timbers which are listed on the Cites list.
The list of timbers I use is in the Classical Concert section of this website.