The government’s criteria for testing vehicles’ crash safety ratings are a-changin’.

For the past 30 years, the National Highway Traffic Safety Administration has been using its 5-star testing program to test how well vehicles sustain potential crashes. That rating system will soon expand to testing how well vehicles avoid accidents in the first place.

In other words, under these new guidelines, it’s going to become much more difficult for a vehicle to earn a 5-star safety rating, meaning it’s about to get easier for consumers to identify safe cars.