At approximately 1:30 a.m. ET on March 26, 2024, a cargo ship leaving the Port of Baltimore in Baltimore, MD struck the (I-695) Francis Scott Key Bridge. This caused the collapse of the bridge. Please continue to check this page regularly for related updates affecting commercial motor vehicles, including traffic alerts and emergency declarations. Read more… (March 31, 2024 – FMCSA)

  • Transportation Routing for Commercial Motor Vehicles. The Maryland Transportation Department has the most up-to-date traffic alerts and information regarding transportation routes and detours in and around Baltimore, MD. If you are traveling through Virginia, please visit the Virginia Department of Transportation website for updates.
  • Transportation Routing for Commercial Motor Vehicles – Hazardous Materials. The Maryland Transportation Department has the most up-to-date traffic alerts and information regarding transportation routes and detours for commercial motor vehicles transporting hazardous materials in and around Baltimore, MD. If you are traveling through Virginia, please visit the Virginia Department of Transportation website for updates

Expanded Hazardous Materials Commodity Flow Statistics. The U.S. Census Bureau and PHMSA’s OHMS jointly developed the 2021-2022 Expanded Hazmat Supplement (EHS), a first-of-its-kind dataset for public release. This dataset is an expansion of the 2022 Commodity Flow Survey (CFS), informed by supplemental questions about hazardous materials and new data from hazmat shippers who use DOT-regulated specification packaging.

This data includes types of hazmat shipped, packaging specifications, quantity and weight of hazmat, and the primary mode of transportation. Making this data available will help to enhance public and first responder safety, research and data-driven decision-making, social and environmental responsibility, and risk assessment and mitigation. Access the dataset here

Hazardous Materials Registration. The 2024-2025 registration year officially begins on July 1st and ends on June 30th of the following year, with early registration opening May 1st. The updated 2024 registration brochure will be available in mid-April. To download or print this brochure, visit this website. The tips below are intended to help you prepare for the upcoming 2024 registration year.

  • To avoid errors and processing delays, please do not submit your registrations for the 2024 registration year prior to May 1st. Any registrations submitted before this date will not be processed.
  • Online registration is the quickest and most effective way to obtain your Hazardous Materials Registration Certificate! To register online, enter through the PHMSA Portal here.
  • When renewing your registrations, please use your HM Company ID to avoid errors in typing business name and company address. If you don’t know your HM Company ID, please contact the registration help desk for assistance by phone or email [email protected].
  • If you are in need of assistance with registration questions or concerns, please contact the Registration help desk at the following numbers:
  • (202) 934-1630 for businesses beginning with the letters A-M
  • (202) 934-1631 for businesses beginning with the letters N-Z
  • If you submitted a registration by mail or ACH, please allow up to 14 days for processing. You can also call our registration help desk after 7 days to check on the status.
  • Please check to see if you have a previous registration prior to registering or call our registration help desk for assistance if you are unsure.
  • For financial payment issues such as disputes, refunds, or other concerns, contact the registration help desk.

Please submit only business contact information. Please note that the contact information you submit during the registration process, including names, addresses, phone numbers, and email addresses, may be disclosed in response to requests under the Freedom of Information Act (FOIA), 5 U.S.C. § 552. For more information, visit here