Stuart Webb, who was embroiled in the Aquanita scandal that rocked Australian, racing has had his application for a trainers' licence knocked back by Racing Victoria.

Webb was disqualified for four years by the Racing Appeals and Disciplinary Board in 2018 but had that reduced to an 18-month ban on appeal to the Victorian Civil and Administrative Tribunal last year.

He was able to reapply for his licence early this year after RV said Webb had served his penalty after standing down from training in January 2018.

A statement from RV said Webb's application had been rejected on its "suitability policy".

"RV can confirm that Mr Webb's applications were denied in accordance with our suitability policy which, among other things, gives consideration to a person's disciplinary record," the statement said.

"Mr Webb may apply to the Victorian Administrative and Civil Tribunal (VCAT) for a review of the decision should he wish to do so."

Fellow trainer Robert Smerdon was disqualified for life and fined $90,000 for his involvement in the scandal with Tony Vasil banned for 18 months.