27360. (a) A parent or legal guardian, when present in a motor vehicle, as defined in Section 27315, may not permit his or her child or ward to be transported upon a highway in the motor vehicle without properly securing the child or ward in a rear seat in a child passenger restraint system meeting applicable federal motor vehicle safety standards, unless the child or ward is one of the following:
(1) Six years of age or older.
(2) Sixty pounds or more.
(1) Six years of age or older.
(2) Sixty pounds or more.