California Code, Education Code - EDC § 22112.5

(a) “Class of employees” means a number of employees considered as a group because they are employed to perform similar duties, are employed in the same type of program, or share other similarities related to the nature of the work being performed.

(b) A class of employees may be comprised of one person if no other person employed by the employer performs similar duties, is employed in the same type of program, or shares other similarities related to the nature of the work being performed and that same class is in common use among other employers.

(c) The board shall have the right to override the determination by an employer as to whether or not a group or an individual constitutes a “class of employees” within the meaning of this section.

(d) The amendments to this section during the 1995-96 Regular Session of the Legislature shall be deemed to have become operative on July 1, 1996.