Colorado constitution
Article XXVI
Section 3

Before the detonation or emplacement for the purpose of detonation of any nuclear explosive device, a competent state official or agency designated by the governor shall first have certified that sufficient and secure financial resources exist in the form of applicable insurance, self­insurance, indemnity bonds, indemnification agreements, or otherwise, without utilizing state funds, to compensate in full all parties that might foreseeably suffer damage to person or property from ground motion, ionizing radiation, other pollution, or other hazard attributable to such detonation. Damage is attributable to such detonation without regard to negligence and without regard to any concurrent or intervening cause.