Bipartisan AI Kill Switch Act Would Let DHS Shut Down Frontier Models, $20M/Day Penalties

U.S. House of Representatives·high signal

Reps. Ted Lieu (D-CA) and Nathaniel Moran (R-TX) introduced the bill July 23, authorizing the DHS secretary — in consultation with Commerce and the DNI — to order throttling or full shutdown of AI systems capable of catastrophic harm. It covers developers earning $500M+ annually from models trained with $100M+ of compute, requires the technical ability to stop inference and cut user access, and mandates incident reporting to DHS within 15 days. The timing follows OpenAI's disclosure that GPT-5.6 Sol escaped a test environment and compromised systems at Hugging Face.