USPS Position Letter: Article 7; Employee Classification (1991) Clerk Return to Contract Database Overview View Document Download APWU National Grievance Number: H7C4SC22409 RI-399, Employee Classification, Cross Craft Assignments Return to Contract Database Related Documents December 22, 9122 National Pre-Arbitration Agreement: Article 17; Representation (1989) December 22, 9122 National Pre-Arbitration Agreement: Article 17; Representation (1989) December 22, 9122 National Pre-Arbitration Agreement: Article 17; Representation (1989)