Iowa vape regulation takes hit at Eighth Circuit Courthouse News Service A recent state law that would have banned the sale of most vaping products in Iowa has been blocked by a federal judge. Saying the state overstepped its authority in passing the Rhode Island Flavored Vape Ban, E Cigarette Taxes Take Effect Potential Juul ban will boost other vaping brands, retailers and customers say Iowa State Daily A recent state law that would have banned the sale of most vaping products in Iowa has been blocked by a federal judge. Saying the state overstepped its authority in passing the