Nebraska, Minnesota, Indiana, and North Carolina all tackled nuclear energy studies, regulatory control measures, and legislation in May 2026 — reflecting the rapid spread of state-level nuclear revival efforts across the US. Nebraska has the most active programme with NPPD pursuing an NRC Early Site Permit (funded by DOE $27.86M grant, May 14, 2026). Minnesota is re-examining a 1994 state law limiting nuclear expansion. Indiana and North Carolina are studying SMR siting requirements and regulatory frameworks ahead of potential future deployments in the early 2030s.