The role of hazardous material placards in transportation safety and security
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields



Document Data
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page


The role of hazardous material placards in transportation safety and security

Filetype[PDF-361.69 KB]



  • Alternative Title:
    Sensitive Security Information : This document contains sensitive security information (SSI) controlled under 49 CFR 1520. The SSI sections have been redacted and the remainder of the document is being disclosed.
  • Corporate Creators:
  • Subject/TRT Terms:
  • Resource Type:
  • Geographical Coverage:
  • NTL Classification:
  • Abstract:
    Following the events of September 11, 2001, the U.S. Department of Transportation (DOT) has taken steps to reduce vulnerabilities of hazardous materials in transportation through security enhancing initiatives directed at reducing their potential use in a terrorist event. As part of this effort, the DOT evaluated existing safety regulations to ascertain whether they detracted from efforts to enhance security. While it is agreed that existing safety regulations generally enhance security, some have called into question the hazardous materials placarding requirements. They have argued that placards, which are important for communicating the presence of hazardous materials, also might aid a terrorist in identifying hazardous materials in transportation and have suggested that placards should be removed and that an alternative to placards should be provided. In response to placarding concerns, the Research and Special Programs Administration (RSPA), Office of Hazardous Materials Safety (OHMS) conducted a review of the use of placards on shipments of hazardous materials from the perspective of both safety and security. To ensure an informed review, OHMS sponsored two workshops with participants with expertise in security, hazmat shipping, public safety and emergency response, and relevant alternative communication technologies. The workshops took into account professional experiences as well as other research, most notably findings from a related study conducted by the National Academy of Sciences (NAS). Alternatives to the current U.S. placarding system that would improve the security of shipments of hazardous materials, without compromising or degrading safety, were evaluated.
  • Format:
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at