WASHINGTON (AP) — You must be a lawyer to argue before the Supreme Court.

Thought that already was the case? It wasn’t until Monday, when the Supreme Court revised its 80-page rule book for the first time since 2010.

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The update covers items such as filing deadlines, but also adds Rule 28.8, which requires anyone arguing before the court to be a lawyer. The high court says the new rule simply codifies a “long-standing practice of the court.”

A nonlawyer hasn’t argued before the justices in more than three decades, though not for a lack of trying.

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A magazine publisher, entrepreneur and paralegal-in-training asked but were turned down, the latest in the past year.

Now, if anyone asks, the court will be able to point to the new rule.

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