Following second GOP presidential debate - Where does Bobby Jindal’s campaign go from here? _lowres

Republican presidential candidate, Louisiana Gov. Bobby Jindal speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)

After weeks of speculation, CNBC has revealed the criteria for Republican presidential candidates to get onto its main debate stage Oct. 28.

Louisiana Gov. Bobby Jindal appears to be heading to another early-round “undercard” debate, unless he gets a big boost in the polls quickly.

Here are the guidelines, per CNBC:

“National polls will be used to determine a candidate’s eligibility and placement on the stage. To be eligible to appear in either segment, a candidate must have at least 1% in any one of the methodologically sound and recognized national polls conducted by: NBC, ABC, CBS, Fox, CNN and Bloomberg, released between September 17, 2015 and October 21, 2015.

To appear in the 8pm (eastern) debate a candidate must have an average of 3% among these polls. The polls will be averaged and will be rounded up to 3% for any candidate with a standing of 2.5% or higher. Candidates who average below that will be invited to the 6pm (eastern) debate.”

Jindal has already polled 1 percent in an NBC poll and a Bloomberg poll during that time frame, so he’s already earned a spot in the early debate, as he did during the first two nationally-televised GOP debates.

But without a boost in polls leading up to Oct. 21, Jindal, whose latest average is 0.5 percent, won’t make it to the main stage.

Jindal’s campaign advisers have been loudly voicing their concern over debate criteria and the possibility of there being no early debate for lower-tier candidates. A top Republican National Committee official signaled earlier this month that the Sept. 16 so-called “undercard debate” could be the last as the presidential race moves forward and focuses on top candidates.

Two Republicans, former Texas Gov. Rick Perry and Wisconsin Gov. Scott Walker, have already dropped out of the race.