Species with 4d Rules

This dataset refers to certain species listed under the Endangered Species Act (ESA) that have specific regulations and management guidelines outlined in a section known as a "4(d) rule." This section of the ESA allows the U.S. Fish and Wildlife Service (FWS) to tailor protections for threatened species. --- ### 🔗 Related Datasets - Species with 4e Similarity of Appearance Rules — *U.S. Fish & Wildlife Service* - Species with 10j Experimental Population Rules — *U.S. Fish & Wildlife Service* - FWS Species Data — *U.S. Fish & Wildlife Service* - FWS Species Listed as Distinct Population Segments (DPS) — *U.S. Fish & Wildlife Service* - Delisted Species — *U.S. Fish & Wildlife Service* ---