The Trump administration is slashing regulations governing test development in a bid to ramp up screening for the coronavirus.

The federal government has struggled to roll out nationwide screening as the virus continues to spread.

The Food and Drug Administration made unprecedented changes late Monday to testing rules, including allowing state governments to essentially self-regulate new tests.

It was unclear how many states will take advantage of the new rules, and experts say the approach also creates challenges for assuring the accuracy of tests and tracking who is getting them.