Chapter 10-08 WAC Model Rules of Procedure
(Rules adopted by the Chief Administrative Law Judge of the State of Washington, to regulate adjudicative proceedings under the Administrative Procedure Act, Chapter 34.05 RCW. Some of these rules are replaced by more specific PERC rules, below.)

Chapter 391-08 WAC Rules of Practice and Procedure Public Employment Relations Commission
(General procedural rules adopted by PERC which modify or supplement the Model Rules of Procedure in Chapter 10-08 WAC.)

Chapter 391-25 WAC Representation Case Rules
(Cases where a union seeks certification as exclusive bargaining representative of a group of employees, or the majority status of an incumbent exclusive bargaining representative is questioned.)

Chapter 391-35 WAC Unit Clarification Case Rules
(Cases where an employer or incumbent exclusive bargaining representative questions whether one or more employees are properly included in or excluded from an existing bargaining unit, after a change in circumstances.)

Chapter 391-45 WAC Unfair Labor Practice Rules
(Cases where employees, a union, or an employer alleges that an employer and/or union has violated the rules established by the Legislature for the collective bargaining process.)

Chapter 391-55 WAC Impasse Resolution Rules
(Cases where an employer and a union are unable to resolve their differences in negotiations for a collective bargaining agreement.)

Chapter 391-65 WAC Grievance Arbitration Rules
(Cases where an employer and a union have a disagreement about the interpretation or application of an existing contract.)

Chapter 391-95 WAC Union Security Dispute Rules
(Cases where an employee and a union have a disagreement about the employee's assertion of a "right of nonassociation" based on religious beliefs.)