Blood quantum laws

American laws on Native American status

Blood quantum laws or Indian blood laws are laws in the United States that define Native American status by fractions of Native American ancestry. These laws were enacted by the federal government and state governments as a way to establish legally defined racial population groups. By contrast, many tribes do not include blood quantum as part of their own enrollment criteria. Blood quantum laws were first imposed by white settlers in the 18th century. Blood Quantum (BQ) continues to be a controversial topic.

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