USPS Position Letter: Article 1.6; Supervisors performing bargaining unit work (1991)

APWU National Grievance Number: H1C3PC46036, H4C4BC11824, H4C4GC3360, H4C3AC26838, H4C4HC34386, H4C3WC43761, H7C4HC951, H4C3DC13318