Cal. Pub. Res. Code § 4494

Upon the conclusion of the examination provided for in Section 4493, the department may issue to the applicant a burning permit that shall specify the site preparation requirements and required precautions to be exercised prior to and during the burning. The issuance of a permit by the department does not relieve the permit holder from the duty of exercising due diligence to avoid damage to property of others in conducting the burning of vegetation as authorized by the permit.