Which topic is part of the required Post-Crash Procedures instruction under the school bus ELDT curriculum?

49 CFR Part 380, Appendix D, Unit D1.4 (Post-Crash Procedures)

Securing the vehicle after a crash, keeping it from rolling, catching fire, or being struck again, is a distinct skill from routine pre-trip checks or backing technique. The curriculum separates it out because it has to be performed correctly under chaotic, time-pressured conditions.