The rescission order directing the U.S. FDA to abandon regulation of lab-developed tests is scarcely three weeks in the past, but two senior managers at the FDA are pushing back in an editorial appearing in the New England Journal of Medicine. The FDA’s Jeff Shuren and Tim Stenzel wrote that there is “a need for a common legislative framework” to ensure clinical tests are accurate and reliable, which implicitly concedes that the statute does not authorize the agency to regulate lab-developed tests.