Research has debunked the claim that state preemption is necessary to prevent a “patchwork” of local laws...

Research has debunked the claim that state preemption is necessary to prevent a “patchwork” of local laws inside one state from harming residents, businesses, and consumers. To the contrary, analysis shows that people who use the patchwork argument to support preemption are generally arguing against any regulation at all, not against local variation. Read more from Treskon M, Marotta J, Rajasekaran P, Ramakrishan K, Shroyer A, Greene S. Do the Effects of a Regulatory Patchwork Justify State Preemption of Local Laws? Urban Institute. January 2021. https://www.urban.org/research/publication/do-effects-regulatory-patchwork-justify-state-preemption-local-laws