NHRA?s reminder for Chillers at INDY

[L.Fite]

Originally Posted by james schaechter

I heard from a rep that the use of chillers is going to be the same as always. Behind the lanes is ok, in the lanes, not ok.

I remember in Topeka one year the tech guys were checking fuel cell temps because several were dropping dry ice in their fuel cells.

Is there a specific rule against that?
Asking because I really don't know...