The "Antibacterial Mark" ("CIAA" mark) on the well-known brand "AB" underwear is actually an illegal certification mark. Recently, Xinghua Chemical Industry and Trade Bureau of the city on sale of illegal certification mark "AB" brand underwear large supermarket for investigation. According to the city's industrial and commercial law enforcement officers, "Antibacterial Mark" ("CIAA" mark) was exposed as early as 2006 by the CCTV Chinese International Channel. Its issuing unit is "China Antibacterial Material Products and Trade Association" Registered company. The company issued the "Antibacterial Mark" without the approval of the National Certification and Accreditation Board for illegal certification. According to the regulations, enterprises use illegal certification for packaging or publicity, are suspected of false propaganda. Xinghua Chemical Industry and Commerce Bureau to remind consumers that the packaging and promotion of certain well-known products, nor necessarily true and legitimate, consumers still need to be vigilant.