Requests for production should specifically target the agency's current and historical safety manuals in effect at the time of the incident, the training curriculum and testing materials used to certify the driver involved, that driver's individual training and certification file, any remedial training or disciplinary history involving speed, following distance, or handling violations, and any internal incident review or after-action report generated following the collision at issue. Agencies will sometimes resist producing driver personnel files on privacy grounds. California law permits discovery of personnel records relevant to the litigation, particularly training and disciplinary records bearing directly on the conduct at issue, though counsel should be prepared to brief the issue and, where appropriate, propose a protective order to address legitimate privacy concerns while still securing the underlying history.