The event, which was first brought to Dubbo in 2017, is expected to feature 450 athletes across the three days of track and field events when it gets underway.

Athletes from across the state will compete in over 400 events spread out across men, women and junior categories.

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The event will feature three different age groupings, Little Athletics featuring the under 9s to under 11s, the NSW Athletics ranging from under 12s to Opens and the Master's division for over 30s.

The event will draw on athletes who line in the more rural and remote areas of New South Wales, with NSW Athletic's Competition Co-Ordinator James Constantine saying that the championships will feature some of the best emerging talent from outside the metropolitan areas.

"They come from all across New South Wales, the criteria is basically that they have to have lived 75 kilometres away from our CBD, we'll have a lot of people travelling, some coming over eight hours just to compete," Constantine said.

Local athletics stars such as Millie Gooch and Maya Piras have already put their names forward for the event, with Piras contesting the under 20s 200m sprint, 100m sprint and 100m hurdles events, while Gooch will compete in the under 17s 200m sprint, long jump, high jump and 100m hurdles.

Although there's a healthy contingent of athletes from the local area, the championships are also a chance for those travelling to prove themselves, with athletes like Gosford's Tyler Gunn hoping to compete in the Tokyo Olympics later this year.

"He unfortunately was injured before getting a chance to compete for Australia in the recent World Championships in Dohar, but he has those aspirations to compete for Australia again in Tokyo, so he'll be one of the big ones," Constantine said.

"There are a number of really high performance athletes on the way."

Among the other entrants to watch out for are discus rising star Ashlynn Blacklock who currently holds a personal best of 49.34m would see her earn a Under 20s World Championship nomination with a repeat performance in Dubbo.

"A lot of the other country athletes are coming from areas that have been hit pretty bad by the fires, so it's a good opportunity for a lot of them to come and compete," Constantine said.

Local sporting clubs will also be pitching in, with several rugby league and AFL clubs assisting NSW Athletics as volunteers.

Track and Field events will both begin at 2pm on Friday, with events on Saturday and Sunday starting in the morning at 8.30am and 9.30am.