IL SB4214

Removes language prohibiting construction of new nuclear power plants in Illinois pending federal approval of high-level nuclear waste disposal technology or General Assembly approval.

Defines "small modular nuclear reactor" as a nuclear reactor with rated capacity not exceeding 350 megawatts, capable of being constructed alone or with similar reactors, and required to be licensed by the U.S. Nuclear Regulatory Commission.

Requires the Illinois Commerce Commission to adopt rules by July 1, 2023 for granting certificates of public convenience and necessity for construction, purchase, or lease of small modular nuclear reactors in the state.

Specifies that Commission rules must consider whether small modular reactors replace retiring coal or natural gas facilities, opportunities to use existing infrastructure, worker reemployment, and owner/operator plans to obtain required federal and state licenses and permits.

Permits the Commission to adopt emergency rules for small modular reactor certificates and prohibits on-site storage of spent nuclear fuel or high-level radioactive waste without meeting all U.S. Nuclear Regulatory Commission requirements.