"The Declaration is a comprehensive statement addressing the rights of indigenous peoples. It was drafted and formally debated for over twenty years prior to being adopted on 29 June 2006 during the inaugural session of the Human Rights Council. The document emphasizes the rights of indigenous peoples to maintain and strengthen their own institutions, cultures and traditions and to pursue their development in keeping with their own needs and aspirations."
- From "Frequently Asked Question: Declaration on the Right of Indigenous Peoples"
Canada adopted UNDRIP in 2016, after almost a decade of it being in existence (Fontaine, May 10 2016, CBC)
You can find the full document of the UNDRIP here.