Understanding Drowsy Driving and What States Can Do

An official website of the United States government. Here's how you know

The .gov means it's official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser's address (or "location") bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that's been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.

May 20th, 2026

More than 6,300 people died in suspected drowsy driving crashes in 2023 – ten times higher than the 633 deaths officially reported in federal statistics. GHSA’s comprehensive analysis uncovered this hidden toll by cross-referencing multiple sources, including the Fatality Analysis Reporting System and the Crash Investigation Sampling System. This massive gap exists because fatigue, unlike alcohol or drugs, leaves no physical evidence that can be tested after a crash.

Understanding Drowsy Driving and What States Can Do