Until when must the trip ticket and master log be maintained after an accident?

The correct answer is grounded in the requirements for proper record-keeping following an accident. Maintaining the trip ticket and master log until the investigation and any necessary maintenance or repairs are completed ensures that all relevant information is available for review. This timeframe allows for thorough documentation of circumstances surrounding the accident and provides a clear record that can be important for legal, insurance, and safety reviews. Additionally, it ensures compliance with operational regulations that aim to uphold safety standards in vehicle operation and maintenance.

While other options may seem plausible, they do not encompass the importance of having adequate records throughout the entire investigative and repair process. Disciplinary action or insurance submissions might be completed before all investigations or repairs are finalized, thereby necessitating the longer retention of vital records. Hence, maintaining these documents until everything related to the incident has been fully resolved is critical.