Think you know the law? Think again.

Did you know that you could be charged with driving under the influence of prescription or even over-the-counter medications?

Or that if you are licensed to drive, you’ve already consented to take tests to determine your blood alcohol content (BAC). If you refuse, your license may be automatically suspended. It’s called Implied Consent.

The laws concerning impaired driving have recently gotten a whole lot tougher. Here are some other things you may not know:

That’s just the tip of the iceberg—there’s a lot more you should know before you head out. Take our legal quiz and test your knowledge.