Homepage of the Pipeline and Hazardous Materials Safety Administration (PHMSA) Office of Hazardous Materials Safety (OHM) for the Department of Transportation (DOT). The OHM formulates, issues and revises Hazardous Materials Regulations (HMR) under the Federal Hazardous Materials Transportation Law. The HMR cover hazardous materials definitions and classifications, hazard communications, shipper and carrier operations, training and security requirements, and packaging and container specifications.
Homepage of the Pipeline and Hazardous Materials Safety Administration (PHMSA) Office of Hazardous Materials Special Permits and Approvals (OHMSPA) for the Department of Transportation (DOT). Primary responsibility for the issuance of DOT Special Permits (previously known as DOT Exemptions) and Approvals to the Hazardous Materials Regulations (HMR).
Do you need to contact the Office of Hazardous Materials Special Permits and Approvals (OHMSPA)? Find the address, phone numbers, and main contacts for OHMSPA.
DOT provides scanned copies in Acrobat PDF format of every current special permit (with date and signature) and, due to numerous inquires, several expired special permits. These special permits are official copies of the original documents which can be viewed and/or printed.
