§ 835 Restriction of argument - Number of counsel.

Here's a plain English summary of this rule:

When someone is on trial for a crime that could lead to the death penalty, both sides get to have up to three lawyers speak to the jury during closing arguments. This gives extra room for discussion in the most serious cases, where the stakes are as high as they can get.

For all other criminal cases, the judge gets to decide how many lawyers can speak to the jury. The judge can limit each side to just one lawyer if they think that's best for keeping the trial organized and moving smoothly.

This rule basically gives judges control over how long and complicated closing arguments become, except in death penalty cases where the law guarantees more lawyers can participate no matter what the judge might otherwise prefer.