Highways speeds as high as 85 mph have been signed into law in Texas.
One new law allows highways built after June to post an 85 mph speed limit as long as engineering supports the speed. A toll road under construction near Austin could be the first.
Another new law increases to 80 mph the speed limit for all vehicles all day on an estimated 520 miles of interstate 10 and 20 in West Texas. The limit had been for cars only during daylight hours. Speed limit on most rural highways for all vehicles has been standardized at 75 mph, as well.