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Navajo Nation Occupational Safety and Health Administration (NNOSHA) - is the Safety and Health Enforcement Agency of the Navajo Nation. It is established to promote, consult, educate, and enforce the Navajo Nation Occupational Safety and Health Administration "Act of 2000'.
The Navajo Nation covers 27,673 square miles occupying portions of North-Eastern Arizona, South-Eastern Utah, North-Western New Mexico and Mid-Colorado divided into 5 agencies and 110 chapters. Therefore, the Navajo Nation Occupational Safety and Health Act shall apply to all workplaces within the territorial jurisdiction of the Navajo Nation in accordance with the purpose set forth in NNOSHA "Act 2000" § 1402.