The Bureau of Indian Affairs Navajo Region awarded a purchase order to DDC 4C, LLC, a tribally-owned, 8(a)-certified small business, for $421,464.84 on September 24, 2026, to conduct a vegetation survey covering 458,435 acres across District 10 North. The procurement is set aside for Indian Small Business Economic Enterprises under the Buy Indian Act. Work is performed in Chinle, Arizona, and includes forage production data collection on 433 transects across six Range Management Units using double sampling methodology per the National Range and Pasture Handbook. Deliverables comprise a detailed technical report with draft versions at 30%, 60%, and 90% completion, a final report within 15 calendar days of agency comments, ten hardcopy reports with binders, GIS data with metadata in ArcGIS Pro 10.4.1, and all electronic field data. The contractor provides all equipment, materials, supplies, personnel, transportation, lodging, and field camping. Professional staff must hold backgrounds in range science, range ecology, plant biology, or related ecological sciences. Performance runs September 14, 2026, through December 31, 2027. Service Contract Act prevailing wage rates apply.