Laws change and regulations tighten over time, and Marsh Industrial understands equipment used in the wastewater industry needs to be up to date with regulatory changes and remain that way throughout years of service.Since HM-183 laws strengthened minimum requirements for cargo trucks carrying hazardous materials to pass tests and inspections, Marsh Industrial focused research and development on understanding the U.S. Department of Transportation’s (DOT’s) new laws for tank transport. For pumpers who haul hazardous waste or are looking to add that service to their offerings, the DOT 407/412 is geared particularly toward transporting hazardous liquids and waste.“Our design-certifying engineer spent
