California Vehicle Code Section 16000.1

(a) For purposes of this division, a reportable off-highway accident means an accident which includes all of the following: (1) Occurs off the street or highway. (2) Involves a vehicle that is subject to registration under this code. (3) Results in damages to the property of any one person in excess of seven hundred fifty dollars ($750) or in bodily injury or in the death of any person. (b) A reportable off-highway accident does not include any accident which occurs off-highway in which damage occurs only to the property of the driver or owner of the motor vehicle and no bodily injury or death of a person occurs.