Issues with concrete and rebar at Southern Nuclear's $14 billion Plant Vogtle project in Georgia have been resolved. The Nuclear Regulatory Commission has approved the company's amendment to the construction license to increase the "compressive strength of the concrete to be poured around the rebar from 4,000 pounds per square inch to 5,000" to keep it in seismic compliance. It also approved a 4-inch variability in the basemat's levelness.

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