Conrail Shared Assets Operations

Conrail Shared Assets Operations (CSAO) is the commonly used name for modern-day Conrail (reporting mark CRCX), an American railroad company. It operates three networks, the North Jersey, South Jersey/Philadelphia, and Detroit Shared Assets Areas, where it serves as a contract local carrier and switching company for its owners, CSX Transportation and the Norfolk Southern Railway.

Source: Wikipedia — Conrail Shared Assets Operations (CC BY-SA 4.0)