About This Report iii

Summary v

Figures and Tables ix

Legal and Policy Approaches to Mitigate Catastrophic Harms from AI 1

Introduction 1

Research Methods 6

Summary of Findings 11

Key Findings 13

Implications: How to Make the Most Promising Policy and Legal Measures More Promising 18

Conclusion 22

APPENDIXES

A. Pre-Elicitation 23

B. Description of Categories of Policy and Legal Measures (Policy Sets) 25

C. Median Values of Participant Responses 29

Abbreviations 31

References 33

About the Authors 37