Southern California Edison might not achieve its June 1 restart target for the Unit 2 reactor of its San Onofre nuclear plant in California, Nuclear Regulatory Commission staff said, citing the thorough review process needed for the complex issue. Under SCE's tentative plan, the plant's operating license would be amended to allow the unit to operate at a maximum capacity of 70%, which is expected to limit degradation of steam-generator tubing. SCE would also need to fulfill other NRC requirements before it is permitted to restart the unit.

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