Denial Of Leave Requests. The County shall not unreasonably deny a request for paid Association business leave or unpaid leave, vacation and/or compensatory time off for Association business unless the County determines the number of Association representatives requesting time off for Association business would create an undue hardship on operational effectiveness, including excessive overtime costs to replace the absent Association representative(s). To expedite resolution of disputes, the Association may file grievances regarding the denial of Association business leave requests beginning at the third step of the grievance process (Article 30, Section 30.10).