Statutes, Regulations, and Forms Statutes Navajo Nation Clean Water ActNavajo Nation Safe Drinking Water Act Regulations Navajo Nation Primary Drinking Water RegulationsNavajo Nation Surface Water Quality StandardsNavajo Nation Surface Water Quality Standards Certification RegulationsNavajo Nation Domestic Wastewater RegulationsNNEPA Uniform Regulations for Permit Review Administrative Enforcement Orders, Hearings, and Rulemakings under Navajo Nation Environmental Acts (Uniform Rules) Primacy Approvals October 23, 2000 Primacy ApprovalJuly 31, 2018 Primacy Approval Forms Septic Tank Reporting FormApplication for Approval to Construct Drinking Water FacilitiesApplication for Approval to Construct a Domestic Wastewater SystemBackflow Assembly Tester Registration FormFee Schedule for Construction PermitConstruction Completion ReportReport Permit Extension Request Public Water System InventorySusceptibility Assessment FormSusceptibility Assessment Update Form Guides Public Water System & Bottled Water System Permitting GuideEmergency Water Supply Plan TemplateHomeowner’s Guide to Septic Systems for Tribal Communities