Queensland's heat, humidity, UV exposure, and seasonal wet weather can degrade standard card tags quickly in outdoor environments. For outdoor or harsh worksite conditions, polypropylene tearproof tags are a more reliable choice. They resist water, oils, UV radiation, and chemicals while remaining legible throughout their service life, which is an important consideration under Australian WHS requirements. Self-laminating tags offer an additional layer of protection for handwritten entries, helping keep recorded information readable even after exposure to moisture or dust. Card tags remain suitable for indoor, short-term, or lower-exposure applications.