These pages provide US DOT (U.S. Department of Transportation) definitions for each hazmat placard used in transportation. Title 49 of the United States Code of Federal Regulations (49CFR) also known as the Federal Motor Carriers Safty Regulations (FMCSR) requires the use hazardous materials placards when shipping hazardous materials cargo and dangerous goods in the United States. Canada, Mexico and many other countries have simular regulations that also require the use of these placards.
CDs containing high-resolution "clipart" versions of each hazmat placard can be purchased from us for $50 U.S. including shipping (via U.S. Mail). For more information and/or to order the CD, please see our placarding CD ordering page.
A freight container, unit load device, transport vehicle, or rail car which contains non-bulk packages with two or more categories of hazardous materials that require different placards specified in Table 2 of 49 CFR 172.504(e) may be placarded with a DANGEROUS placard instead of the separate placarding specified for each of the materials in Table 2 of 49 CFR 172.504(e). However, when 1,000 kg (2,205 pounds) aggregate gross weight or more of one category of material is loaded therein at one loading facility on a freight container, unit load device, transport vehicle, or rail car, the placard specified in Table 2 of paragraph (e) of this section for that category must be applied.
A material which is listed in appendix B to 49 CFR 172.101 of this subchapter (also see 49 CFR 171.4) and, when in a solution or mixture of one or more marine pollutants, is packaged in a concentration which equals or exceeds:
Last updated: March 2000
While excerpts from the Code of Federal Regulations Title 49 (49CFR) and the "Emergency Response Guidebook" are in the public domain, the image files on these pages, the design of these pages as well as all other materials on this site and graphics files are copyrighted by J.K. Barbalace, inc. Copyrighted material on this site, including graphics files, MAY NOT BE REPRODUCED in any form without the express permission.
WARNING: These pages are for general reference and educational purposes only and MUST NOT be relied upon as a sole source to determine regulatory compliance or where matters of life and health are concerned. This site and the author do not warrant or guarantee the accuracy or the sufficiency of the information provided and do not assume any responsibility for its use.
To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.
If you need to cite this page, you can copy this text:
Kenneth Barbalace. USDOT HazMat Placards - Other Related Markings. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 12/1/2021