Requires the Interior and Commerce Departments to post online the scientific and commercial data used for Endangered Species Act (ESA) listing decisions and similar rules, while protecting information that states forbid disclosing and classified Department of Defense data. States must receive all underlying data before determinations are made, and state, Tribal, and county data count as part of the evidence base.

Creates a public, searchable database and an annual report showing federal spending on ESA-related lawsuits. Updates how courts award attorney fees and costs in ESA cases by tying them to existing federal fee laws (EAJA and APA).