Field Manual of the AAR Interchange Rules

Rule 1 – Care of Freight Cars

Rule 16 – Couplers, Type E and Parts

Rule 18 – Couplers, Type F and Parts

Rule 37 – Roller Bearing Adapters

Rule 41 – Wheels

Rule 46 – Truck System Performance

Rule 48 – Truck Side Frames, Transoms and Spring Planks