To amend the Endangered Species Act of 1973 to provide for protective regulations when a species is listed as an endangered species.

This bill amends the Endangered Species Act to require the Secretary of the Interior to issue protective regulations for endangered species, changing the current "may" to "shall" for this action. It clarifies that such regulations can prohibit activities listed in Section 9 (like harming species or their habitats) but only apply in states that haven't adopted equivalent rules through cooperative agreements. The bill also updates Section 9 to reference these new regulations. This change directly affects how federal protections are implemented for species listed as endangered, ensuring consistent conservation measures nationwide unless states adopt their own rules.