Both campaigns agreed to a 90-minute debate with two four-minute commercial breaks. Campaign staff are not allowed to interact with the candidates during the breaks. 

There will be no audience — a measure also implemented during the two previous presidential debates. 

At the event’s start, the moderators will introduce the candidates in order of the incumbent party, with Walz coming first. There will be no opening statements. 

Walz will stand behind the lectern on the left side of the stage, which will be on the right side of viewers’ screens. Vance will be at the podium on the right side of the stage, but the left side of screens. 

Candidates, who cannot bring pre-written notes or props on stage, will have two minutes to answer a question and two minutes to respond. They will be allowed one minute for rebuttals. At the moderators’ discretion, candidates may get an additional minute to continue a discussion. 

Unlike the presidential debates, a candidate’s microphone will not be muted when their opponent is speaking, but CBS News reserves the right to turn off the microphones. 

Vance won a virtual coin toss on Thursday, opting to go second with his closing statement. Each candidate will have two minutes for their closing remarks.  

No topics or questions will be shared with the campaigns in advance. 

The debate is taking place at Studio 45 at the CBS Broadcast Center, located in the Hell’s Kitchen neighborhood of Manhattan. After the debate, campaign surrogates and the press will go to the spin room in Studio 42, another studio in the 800,000-square-foot Broadcast Center. Members of the media will be watching the debate and filing their stories from a press pen set up in the cafeteria. 

Until this summer, Studio 45 was where “Inside Edition” was filmed. “Captain Kangaroo” was also taped in Studio 45 from 1964-1981. 

CBS News moved into the facility in 1964, and Walter Cronkite broadcast the 1964 election results from Studio 41, which is now home to the “Drew Barrymore Show.” 

Most voters say they’ll tune in to watch Tuesday night’s vice presidential debate and that they’re looking to learn something about the candidates, even as many also say — perhaps unsurprisingly in this partisan environment — that they’re watching to root for their side or to see if the other side makes a mistake. 

Part of any vice presidential nominee’s role is to rally the base, and both Walz and Vance head into Tuesday’s debate in a good position within their own parties: a big majority of Democrats think Walz makes their ticket better, and most Republicans think Vance adds to their ticket, too.

Walz and Vance are each described as generally “competent” by most voters, but the debate also sets up a challenge for both. Neither has yet convinced a majority of voters about an essential part of the job: that they’d be qualified to be president if needed.

Read more from the CBS News polling unit here.