Cal. Veh. Code § 27314.5
(a)
(1) Subject to paragraph (3), no dealer shall sell or offer for sale any used passenger vehicle of a model year of 1972 to 1990, inclusive, unless there is affixed to the window of the left front door or, if there is no window, to another suitable location so that it may be seen and read by a person standing outside the vehicle at that location, a notice, printed in 14-point type, which reads as follows:
“WARNING: While use of all seat belts reduces the chance of ejection, failure to install and use shoulder harnesses with lap belts can result in serious or fatal injuries in some crashes. Lap-only belts increase the chance of head and neck injury by allowing the upper torso to move unrestrained in a crash and increase the chance of spinal column and abdominal injuries by concentrating excessive force on the lower torso. Because children carry a disproportionate amount of body weight above the waist, they are more likely to sustain those injuries. Shoulder harnesses may be available that can be retrofitted in this vehicle. For more information call the Auto Safety Hotline at 1-800-424-9393.”
(b)
(1) In addition to the requirements of subdivision (a), and subject to paragraph (3) and subdivision (c), the dealer shall affix, to one rear seat lap belt buckle of every used passenger vehicle of a model year of 1972 to 1990, inclusive, that has a rear seat, a notice, printed in 10-point type, that reads as follows:
“WARNING: While use of all seat belts reduces the chance of ejection, failure to install and use shoulder harnesses with lap belts can result in serious or fatal injuries in some crashes. Shoulder harnesses may be available that can be retrofitted in this vehicle. For more information, call the Auto Safety Hotline at 1-800-424-9393.”