State police say the number of teens killed in traffic accidents last year was 133 compared to 187 in 2003. One hundred ninety teenagers died in crashes in Illinois in 2002.
Illinois State Police Commander Leonard Stallworth said Thursday that last year's number was the lowest since officials started recording the numbers in 1974.
Stallworth attributes the drop to a new state law that bars teens under 18 from driving with more than one passenger under the age of 20 unless the passengers are the driver's siblings or children.
The law applies to teenagers during the first six months after they get their driver's license or when they reach the age of 18.
Violators can face a fine of $75.