SIMI VALLEY (AP) — A federal judge has ruled that a California law that laid out strict cleanup standards at a former rocket engine test site just outside Los Angeles is unconstitutional.

The decision this week is a victory for the site’s current owner Boeing, which claimed it was being unfairly singled out and that the cleanup rules were unreasonable.

Passed in 2007, the law required the Santa Susana Field Laboratory to be cleaned up to standards above Superfund requirements. For decades, the site was used for rocket engine and nuclear testing.

State environmental regulators said they plan to appeal.

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