Patrick, though there are no training
mandates at the national level, there are training
standards. The fire service generally looks to the National Fire Protection Association for its national standards.
NFPA
1006 addresses training for those involved in vehicle (and other forms of) rescue. 1006 is in the process of being updated, but the 2003 edition stipulates that certain job performance requirements, in particular knowledge and skill objectives, "shall be met prior to certification in vehicle and machinery rescue." One of these requirements:
"Isolate potentially harmful energy sources, given basic extrication tool kit and personal protective equipment, so that all hazards are identified, systems are managed, beneficial system use is evaluated, and hazards to rescue personnel and victims are minimized."
These standards are deliberately written broadly and updated infrequently, and are not usually designed to address the countless and rapidly changing specific hazards or technologies. Vehicle rescue trainers do address specific hazards in their curricula.
Some individual fire departments choose not to comply with NFPA standards for various and often unknown reasons. I suggest again that if responders' agencies haven't trained their people on hybrid technology after all these years, it's their own fault.