Foot Vent question for island loop vent

[j-flux]

First post here so a huge thank you ahead of time to all the folks offering great advice on this forum. I'm hoping someone can clear up my confusion about foot vents in an island loop vent configuration: My question is: since a foot vent is technically below the flood rim level of the sink fixture, is a horizontal change in the direction of the foot vent prohibited by code (UPC in this case)? Or is this vent now technically considered to be above the flood rim because it's an island foot vent and can change direction like any other vent above the flood rim?