National Congress of American Indians Policy Research Center's website provides these Model Research Codes and Contracts:
Model Tribal Ordinance for the Protection of Indigenous Knowledge and Biological Resources (Indigenous Peoples Council on Biocolonialism)
Communally held TEK is not eligible for protection through intellectual property laws in the United States, which protect an individual's intellectual property for a finite time before the information enters the public domain. For federal agencies, generally TEK held in federal files is subject to Freedom of Information Act requests. Make this fact known in writing to the indigenous community's governing body and individuals participating in the study. Gatekeeping by the indigenous community is currently the safest means of protecting sensitive TEK.
This issue is so important that this website has an entire page devoted to it. Please visit the Protection of Tribal/Indigenous Knowledge page.
For more information about activities to protect TEK worldwide, please visit the World Intellectual Property Organization website.