Model Minimum Uniform Crash Criteria (MMUCC) 5th Edition Update


The Governors Highway Safety Association (GHSA) and the National Highway Traffic Safety Administration (NHTSA) are pleased to announce the launch of the latest Model Minimum Uniform Crash Criteria (MMUCC) update. With new vehicle technologies being developed rapidly, we feel that the transition to MMUCC’s 5th edition offers an important opportunity to move the standard forward, streamlining frontline data collection and providing flexibility for data collectors and managers alike as vehicles and the driving environment continue to evolve.

Revising MMUCC

Feedback from a broad spectrum of MMUCC users was analyzed by the federal safety agencies to develop a suite of proposed changes that would improve the quality and utility of crash data by addressing emerging safety issues, technological changes in the vehicle fleet, and how states collect, manage and analyze their crash data. These changes proposed by the federal safety agencies are merely a starting point in the conversation about what MMUCC’s 5th edition could include.

Highway safety professionals provided input on these proposed changes through an online forum (conducted in May) developed by GHSA and NHTSA. An Expert Panel of approximately 30 participants, including representatives of law enforcement, state traffic records coordinators, state and local departments of transportation, researchers, EMS and federal officials, reviewed these comments, and made a number of initial decisions, including the creation of separate sections for fatal crashes, large motor vehicles and non-motorists. It has recommended that states be given more flexibility in the way in which they collect data and has also proposed a few new data elements, including ones for automated vehicles and ignition interlocks. Following the first meeting, the Expert Panel formed small working groups to review particular data elements and their attributes and recommend changes.

This is a collaborative process between NHTSA, GHSA and critical stakeholders, so all comments are considered. Before you begin the online forum, we strongly suggest that you carefully review the instructions on the first page of the tool (shown after you register). As you fill out the questions in the tool, you will be able to save your progress and return to complete the survey at a later time. Completion of the forum questions should take about 30-60 minutes. The deadline for responses is 5:00 p.m. ET on October 28, 2016.

Proposed Changes

The proposed changes to MMUCC are outlined in the two documents below: