The City challenged the arbitrability of a grievance alleging that DHS violated the parties‟ collective bargaining agreement by refusing to provide the Grievant with Fridays off as a religious accommodation, rejecting a request for an alternative work schedule, and violating provisions regarding shift assignments. The City argued that the Union failed to establish the requisite nexus between the subject of the grievance and the collective bargaining agreement. The Board found that, with the exception of the EEO policy claim, a nexus existed as to the Union‟s claims. Accordingly, the Board granted, in part, and denied, in part, the City‟s petition challenging arbitrability.