Yes I believe it would be illegal to transport nicotine into indiana without a license. Hence the parcel carriers and the US mail would not transport on your behalf unless you, they and the seller were all licensed in indiana. By the way there are now a total of four bills that have been introduced that affect vaping in this legislative session. There will be a meeting at the antelope club in Indianapolis on Sunday the 25th. It is at 615 N. Delaware in Indianapolis, IN. The meeting starts at 3:00 pm est