MMUCC are a voluntary set of guidelines that help states collect consistent, reliable crash data that are more effective for identifying traffic safety problems, establishing goals and performance measures, and monitoring the progress of programs.
Some of America's leading traffic safety experts worked together to develop the MMUCC guidelines, including representatives from groups in safety, engineering, emergency medical services, law enforcement, public health, and motor carriers.
Before MMUCC, planning efforts for safety programs at all levels were hindered by unreliable and inconsistent data that often led to incorrect interpretations. Now, MMUCC allows states to share and compare better data, and provides them with an invaluable tool for developing traffic safety policies.
2003 MMUCC Guideline (HTML/508)