§ 455 Bench warrant may issue into one or more counties.

Here's a plain English summary of this rule.

If a person needs to be arrested after a court order, the court clerk can issue a bench warrant for that arrest. The district attorney has to ask for it first. Once the request is made, the clerk can send the warrant to more than one county at the same time.

This means the warrant is not limited to just the county where the case is being handled. If the person might be hiding out or living somewhere else, law enforcement in other counties can also get the warrant and act on it. The clerk can do this whether court is currently in session or not, so there's no need to wait for a judge to be actively hearing cases.

This rule basically gives prosecutors a faster and wider reach when trying to get someone arrested. It removes location as a barrier and lets the warrant follow the person, no matter what county they end up in.