From the website for the Alliance for Uniform Hazmat Transportation Procedures:

As of September 2017, Ohio is no longer participating in the Alliance for Uniform Hazmat Transportation Procedures. Carriers previously based in Ohio that still operate in participating Alliance states must choose a new base state according to the process contained in the application.

The Alliance for Uniform Hazmat Transportation Procedures is a group of four states — Michigan, Nevada, Oklahoma and West Virginia — that register and permit carriers and shippers of hazardous materials in a uniform manner, utilizing the same application forms and fee assessment calculations.

Below are the remaining HM Alliance member states and the type of hazardous material each regulates under the HM Alliance program:

• Hazardous waste only
  • Michigan
  • Oklahoma
• All hazardous materials (including hazardous waste)
  • Nevada
  • West Virginia

Note:  At one time the alliance included both Minnesota and Illinois but they ceased participation some time in the past.

The key policy objective of the Uniform Program for regulating hazardous materials transportation is the protection of public health and safety. The Uniform Program is designed to promote safety through increased compliance with a single set of registration and permitting requirements versus the existing myriad of state programs.