The Missouri Department of Natural Resources describes a Missouri Department of Transportation business as:

The Missouri Department of Transportation (MoDOT) is committed to providing the public with a safe and modern transportation system. Under the guidance of the Missouri Highways and Transportation Commission, MoDOT is responsible for maintaining 33,830 miles of highways and 10,399 bridges throughout the state. In addition to designing, building and maintaining roads and bridges, MoDOT works to improve airports, river ports, railroads, public transit systems and pedestrian and bicycle travel. The agency also administers motor carrier and highway safety programs.

You may need some or all of the following permits for a Missouri Department of Transportation business:

Above Ground Storage Tank Registration https://dnr.mo.gov/waste-recycling/business-industry/permits-licenses-registrations/above-ground-storage-tank

Waste and Recycling

Above ground storage tanks are regulated by the Missouri Department of Agriculture. For more information, please visit their Fuel Device Safety and Accuracy Program webpage.
Hazardous Waste/ Infectious Waste Transporter License https://dnr.mo.gov/waste-recycling/business-industry/permits-licenses-registrations/hazardous-waste-infectious-waste-transporter

Waste and Recycling

If you or your business plans to transport used oil, hazardous waste (combustible liquids, corrosives, poisons/ toxins, flammable liquids, flammable solids, PCB's) or infectious waste in Missouri, you are required to obtain a Hazardous Waste Transporter License.

Even though the request is approved by both Missouri Department of Transportation (MoDOT) and the Missouri Department of Natural Resources, you must apply for and renew the license through MoDOT. For more information, please visit MoDOT's Hazardous Waste Transport webpage.
Open Burning Notification https://dnr.mo.gov/air/open-burning-notification

Air

Open burning is the burning of any materials in which air contaminants are emitted directly into the air without first passing through a stack or chimney. The Missouri Department of Natural Resources does not issue permits for open burning. Prior to conducting any open burning, businesses and citizens should contact the city or county of jurisdiction for any local restrictions.

The department's Facts on Open Burning Under Missouri Regulations - PUB2047 fact sheet summarizes allowable and prohibited open burning under Missouri regulations. It does not include open burning restrictions that city or county governments may impose in addition to Missouri’s state regulations.