Idaho Code · § 37-2517 — Underground storage or fill-pipe — Affixation and visibility of metal tag

If the container of reclaimed oil sold or offered for sale or delivery is an underground storage tank the sign or label required by this article to be attached shall be affixed to the inlet end of the fill-pipe of the underground tank and shall consist of a metal tag firmly attached or affixed and plainly visible while the tank is being filled. The letters on such sign or label may be any convenient size.