California Insurance Code 2030-2032
2030. An insurer is entitled to rescind a contract of fire insurance upon an alteration in the use or condition of the subject matter insured from that to which it is limited by the policy, when such alteration is made without the consent of the insurer by means within the control of the insured, and increases the risk. 2031. When a contract of fire insurance does not restrict use or condition of insured subject matter, such contract is not affected by an alteration in such use or condition if the alteration does not increase the risk. 2032. After the execution of a contract of fire insurance, an act of the insured does not affect the contract unless the act violates policy provisions, even though such act increases the risk and causes a loss.
