Man in car looking out the window.

Where Do States Stand on Ignition Interlock Devices?

Alcohol-impaired driving kills on average 10,000 people every year. Requiring drivers convicted of a DUI to install ignition interlock devices (IID) in their vehicles to prevent recidivism has garnered wide consensus among traffic safety experts and practitioners. Learn more about state IID laws and the effectiveness of IIDs in this new Review. 


Doug Shinkle.

NCSL Testifies to US Senate on Transportation Funding 

Douglas Shinkle, NCSL’s transportation program director, testified as part of a Senate Environment and Public Works Committee hearing on transportation funding on April 14. He outlined some of the new approaches states are taking to fund and finance needed transportation investments, such as studying and creating road user charging programs, enacting fees on electric and hybrid vehicles and using public-private partnerships for large transportation capital projects. 

Summit 2021




Distracted driver.

Traffic Safety Trends | State Legislative Action 2020

States and state legislatures have primary responsibility for establishing traffic safety laws and programs to help ensure the safety of roadway users. In 2020, state legislatures introduced over 1,400 traffic safety bills related to the 14 topic areas covered in this new report. 


Autonomous vehicle testing.

States Advance Autonomous Vehicle Policy and Technology

Catching a ride in an autonomous vehicle—once a futuristic wish—is slowly becoming a reality in the United States. Learn more about technology companies testing and operating autonomous vehicles in the U.S. and how Arizona, a leader in AVs, recently enacted legislation to codify key regulator practices to help ensure the safety of AVs. 


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State Road User Charge Toolkit

Motor fuel tax receipts are projected to decline as vehicles become more fuel-efficient and electric vehicles proliferate. Learn more about the details of road user charging (RUC) activities in Missouri, New Hampshire, Oregon and Washington, with other states to be added soon. 


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Transportation Legislation Tracking Databases

NCSL’s Transportation Program bill tracking databases, Traffic Safety | Funding and Finance and Autonomous Vehicles | have information about transportation-related bills that have been introduced in the 50 states and D.C.


Man filling gas tank on car.

Transportation and Traffic Safety Podcasts 

"Our American States" has hosted several conversations on transportation and traffic safety topics, including drug and alcohol-impaired driving, school bus safety, distracted driving and transportation accessibility. Find all the transportation-related podcasts here.