This report examines the quality of state crash information; the activities states undertook using 411 grant funds to improve their traffic safety data systems, and the progress they made using the grant funds; and NHTSA's oversight of the grant program

This report examines how DOT is (1) deciding on responses to the crash avoidance and electronic distractions trends--given available evidence and uncertainties; (2) developing new evidence on these trends' safety impacts; and (3) communicating with the Congress about these and other trends and related issues. To conduct this study, GAO analyzed DOT reports, peer-reviewed literature, and other documents; interviewed DOT officials and staff; and interviewed over 30 experts.