Abstract: A user authorization tag for the wearer thereof is rendered tamper resistant by forming the tag as an integral unit having a flat panel portion and a flexible loop portion extending from the panel portion. The loop is dimensioned for threading through a clothing opening, for example through a zipper pull, a button hole, or the like. Once the loop is threaded through the clothing opening, the panel is passed through the loop, to thereby secure the loop to the clothint opening. A relatively large ticket, carrying user authorization information such as bar code data, is then nonremovably secured to the panel. The size of the ticket is such that the panel with its attached ticket cannot pass back through the loop if an attempt is later made to remove the tag from the clothing.