Along with the development of indigenous issue at international level  that continue to discuss the implementation of the provisions of the UN Declaration on the Rights of Indigenous Peoples and the extent to which indigenous peoples implement the aforementioned articles, then under the UN Declaration on the Rights of Indigenous Peoples Article 33 which states;

1. Indigenous Peoples have the right to determine the identity and membership
    that suit your customs and traditions. This does not interfere with the rights
    them to obtain citizenship in which they live.

2. Indigenous Peoples have the right to determine the structures and to select
    the membership of the institution or institutions in accordance with their own procedures.

This is an implementation of the article about indigenous identity in an institution in the form of human rights ID that is given to the indigenous peoples who wish to become members but with the procedure and conditions apply.