When Amtrak began operations, they acquired a large number of passenger and baggage cars that had previously been owned by various railroads. Because of the importance of their service, a large number of baggage cars were repainted and remained in the Phase I paint scheme for many years.

Two of Amtrak's "smoothside" baggage cars came from Union Pacific and were renumbered as 1075 and 1076 when they were repainted for Amtrak.