Tierra’s Natural Resources Division holds the following permits and certifications:

• U.S. Fish and Wildlife Service Permit, 2001-Current, for Cactus Ferruginous Pygmy Owl and Pima Pineapple Cactus surveys
• Navajo Nation Biological Investigation Permit, 2007-Current
• Arizona Game and Fish Department Scientific Collecting Permit, 2001–Current, for Sonoran Desert Tortoise, Western Burrowing Owl, and Chiricahua Leopard Frog surveys
• Chiricahua Leopard Frog certified survey training by the U.S. Fish and Wildlife Service and Arizona Game and Fish Department, 2006
• Southwestern Willow Flycatcher certified survey training by the Arizona Game and Fish Department, 2008
• Western Burrowing Owl certified survey training by the U.S. Fish and Wildlife Service and Arizona Game and Fish Department, 2008
• U.S. Army Corps of Engineers Jurisdictional Wetlands, certified delineation training by the Wetland Training Institute, 2009