As used in this chapter: (a) "Arbitration" means a method of resolving a rights dispute under which the parties to a controversy must accept the award of a third party. (b) "Board" means the Public Employment Relations Board established pursuant to Section 3513. (c) "Certified organization" means an employee organization that has been certified by the board as the exclusive representative of the employees in an appropriate unit after a proceeding under Article 5 (commencing with Section 3573). (d)