When a car is 'bad-ordered' (marked out of service), the conductor's responsibility includes:

1. Removing the car from service immediately if any visible defect is found, even during a moving train
2. Ensuring the car is tagged or marked and set out at the first available location where it can be repaired
3. Repairing minor defects using tools carried in the tool box on the locomotive
4. Reporting the defect at the end of the trip and continuing with the car in service