The Great Recession was uniquely devastating for states and localities because it hit all three major tax revenue sources: income, sales and property. It was a scenario that few, if any governments, were really prepared to absorb. As a result, governments were forced to make massive budget cuts.

Now, as the recovery trudges on longer than most, a growing number of states are making sure they aren’t blindsided by the next downturn.

Enter stress testing. The idea, which was borrowed from the U.S. Federal Reserve, essentially throws different economic scenarios at a state budget to see how revenues would be impacted.

“We’re in an environment where everyone is starting to think about the next downturn and what that’s going to look like,” said Emily Raimes, a Moody’s Investors Service analyst. “A stress test is a tool for states to think about what types of programs they should commit to and how much to save now.”