All MoDNR Environmental Permits, Certifications, Registrations and Licenses

If your business operates a clay pit or mine, you must obtain a Clay Pits MOG840000 master general permit for the discharge of stormwater, snowmelt and infiltration water from the site.

If your business is a Class I Concentrated Animal Feeding Operation and Class II Animal Feeding Operations that are defined as a CAFO, you must obtain a Concentrated Animal Feeding Operation MO-G010000 Master General Permit.

If your business plans to disturb one or more acres of land, you are required to obtain a Construction or Land Disturbance Master General Stormwater Permits MORA00000 to address stormwater discharges from property. In addition, construction activities that disturb less than one acres when part of a larger common plan of development or sale that will disturb a cumulative total of one or more acres over the life of the project also require this permit.

If you are planning to build a water reservoir that includes a dam 35 feet in height or higher and will be primarily used for agriculture purposes, you can apply for a Dam and Reservoir Agricultural Exemption Permit. If for any reason the department denies your exemption request, you will be required to apply for a Dam and Reservoir Safety Construction Permit, Dam and Reservoir Safety Registration Permit or Dam and Reservoir Safety Permit.

If you are proposing to build a new dam 35 feet or more in height, you are required to obtain a Dam and Reservoir Safety Construction Permit before construction and a Dam and Reservoir Safety Permit to operate the dam and reservoir once construction is complete. If you plan to make significant modifications to an existing dam that meets the height threshold, a Dam and Reservoir Safety Construction Permit is also required.

If you have obtained and constructed a dam or reservoir under an approved Dam and Reservoir Safety Construction Permit, you will need to apply for and renew a Dam and Reservoir Safety Permit to continue operation.

If you own an existing dam built prior to Aug. 13, 1981 that is 35 feet or more in height, you are required to obtain a Dam and Reservoir Safety Registration Permit.

If your business plans to discharge wash water, stormwater and return water from aggregate dredging operations on the Missouri and Mississippi rivers, you must obtain a Dredged Aggregate to Big Rivers MO-G698000.

If your business plans to dredge waterways that will return water and stormwater runoff from the dredged material deposition sites and other disturbance resulting from maintenance dredging of lakes and rivers, you must obtain a Discharges from Dredged Aggregate to Lakes/ Rivers/ Harbors MO-G690000 master general permit.

If you would like to become a licensed drinking water treatment operator or a drinking water distribution operator, visit the department's Operator Certification webpage. The department can help provide you with training, examinations, funding vouchers to obtain certification and information about employment opportunities within Missouri. 

If your business operates a ferrous and nonferrous foundry, casting, extrusion, rolling, galvanizing and finishing, structural steel production, light metal fabrication and electrical equipment manufacturing, you must obtain a Fabricating Metal, Light Industrial General Stormwater Permit MOR203000 to address stormwater discharges from the property.

If your business is designed and operated as a no-discharge, mixed feedstock composting facility under 20 acres, you must obtain a Feedstock Compost Sites MOG920000 master general permit.

If your business plans to operate a flow-through concentrated aquatic animal production facility, you must obtain a Fish Farms/ Hatcheries MOG130000 Master General Permit.

If you would like to place a cache in a Missouri State Park, you will need to apply for a Geocaching and Letterboxing Permit and follow specific steps and guidelines provided by Missouri State Parks. For more information, please visit the Missouri State Parks' Geocaching and Letterboxing Permit webpage.

This is one of two possible permits that make up a hazardous waste permit. A Hazardous and Solid Waste Amendments Part 2 Permit contains the federal hazardous waste management regulations administered by EPA that Missouri has either not adopted or has adopted but EPA has not yet given Missouri temporary or final authorization to administer. This "Part 2" permit is issued by EPA, if warranted. EPA does not issue a Part 2 Permit if EPA has no site-specific conditions for that particular facility. Please visit the Hazardous Waste Permit.

If you or your business produce or store used or “spent” product, by-product or sludge that, when discarded, would be identified as a hazardous waste, but you would prefer to handle it as a hazardous secondary material, you must submit a Notification of Regulated Waste Activity form and attach a completed Hazardous Secondary Materials addendum. 

In the event there is a situation that presents an immediate and significant threat to human health or the environment based on hazardous waste issues, the department may issue a Hazardous Waste Emergency Permit. If your business already has a hazardous waste permit, this permit would allow you to treat, store or dispose of a hazardous waste not covered by your effective permit. Non-permitted companies may also receive an emergency permit to allow them to temporarily treat, store or dispose of hazardous waste. The emergency permit clearly specifies the hazardous wastes the company intends to handle and how they are allowed to treat, store or dispose of the wastes.

If you produce or store some form of hazardous waste as a result of your business processes, you may be required to register as a hazardous waste generator.

If you want to actively treat, store (for more than 90 days) or dispose of hazardous waste in Missouri, you are required to get a Hazardous Waste Permit. Certain “inactive” hazardous waste treatment, storage or disposal facilities may also be required to obtain a permit in order to investigate, monitor and clean up hazardous waste release to the environmental at their facility.

If your business owns or operates a hazardous waste treatment facility and wants to use new and experimental treatment technologies that do not fall under current regulation standards, you may apply for a Hazardous Waste Research, Development and Demonstration Permit.