In Utah, where smoking is prohibited entirely, the building owner, agent, or operator must conspicuously post a sign using the words, "No smoking is permitted in this establishment", on all entrances or in a position clearly visible on entry into the place. Use this Utah No Smoking Sign and make sure your establishment complies with Utah Code Ann. § 26-38-1. "No Smoking" is printed in 1.6 inches height and international "No Smoking" symbol is 5.5 inches in diameter.