Veh. Code, § 11104

(a) Every person, in order to qualify as a driving instructor, as defined in Section 310.4, shall meet all of the following requirements:

(1) On and after July 1, 1973, have a high school education or its equivalent and have satisfactorily completed a course in the teaching of driver education and driver training acceptable to the department.

(2) Within three attempts, pass an examination that the department requires on traffic laws, safe driving practices, operation of motor vehicles, and teaching methods and techniques.

(3) Be physically able to safely operate a motor vehicle and to train others in the operation of motor vehicles.

(4) Hold a valid California driver’s license in a class appropriate for the type of vehicle in which instruction will be given.

(5) Not be on probation to the department as a negligent operator.

(6) Have a driving record that does not have an outstanding notice for violating a written promise to appear in court or for willfully failing to pay a lawfully imposed fine, as provided in former Section 40509.

(7) Be 21 years of age or older.

(b) If an applicant cannot meet the requirements of paragraphs (3) and (4) of subdivision (a) because of a physical disability, the department may, at its discretion, issue the applicant a driving school instructor’s license restricted to classroom driver education instruction only.

(c) The qualifying requirements referred to in this section shall be met within one year from the date of application for a license, or a new application, examination, and a fee shall be required.