Get the word out on your shipments of dangerous oxidizing substances with Labelmaster's Oxidizer Worded Placards. Available in a variety of materials, these Hazard Class 5 placards meet the requirements of 49 CFR 172.500 for domestic and international shipments of hazardous materials by highway, rail and water. When your job involves shipping potentially dangerous substances and materials, our job is ensuring your compliancy with durable, fully tested placards. The result is worry-free, on-time delivery of your shipments.