Construction permits, also called New Source Review permits, are required for the construction of a new air pollution source, or modification of an existing source. Construction and modifications refer to activities that will increase air emissions and include changes in operation, addition of equipment, changes in fuel or raw materials and the relocation of previously permitted sources. Certain activities have been determined by the state to be a source of insignificant emissions and are exempt from permitting requirements per 10 CSR 10-6.061.
Note: The following information is not meant to be a tool to determine applicable federal and state regulations for a specific situation. The method of choice should always be a thorough review of the state and federal rules and regulations.
Construction permits allow an installation to construct and operate an air emission source. Construction permits are required prior to commencing construction of an emission source. Construction may not begin until a construction permit has been issued. Therefore, it is recommended the applicant allow ample time for review and issuance of the permit in the planning stages of a project. In certain cases, an applicant may apply for a pre-construction prohibition waiver to begin construction prior to receipt of the approved permit.
A construction permit does not expire, although construction must begin, upon receipt of the construction permit, within 18 months for a major project and within two years for a minor project. Since construction permits have time requirements, a facility may need to obtain several construction permits if the sources of air emissions are installed at different times.
For information about a construction permit, contact department staff at CPAirApplications@dnr.mo.gov. Stakeholders also may use this email address to submit permit applications and amendments. Applications for permits and amendments require a filing fee. For information on how to pay the fee, contact the accounting section of the department's air program at DNR.APCPCreditCards@dnr.mo.gov. Payment and hard copy construction applications may be submitted by mail to the Missouri Department of Natural Resources, Air Pollution Control Program, PO Box 176, Jefferson City, MO 65102-0176 or electronically at CPAirApplications@dnr.mo.gov.
Introduction to Air Construction Permits
Discussion of Potential to Emit - Potential emissions are different from actual emissions.
Overview of the Permit Review Process
The existing potential emissions of the installation and the potential emissions of the project determine the type of permit required for the construction activity.
- The Permitting Process - This document gives general information on how to determine what type of permit is needed.
- Permit Applicability Determination Flow Chart for Criteria Air Pollutants
- Permit Applicability Determination Flow Chart for Hazardous Air Pollutants
- Projects Exempt from Construction Permitting
Summary of Permit Types
The department's Air Pollution Control Program issues several types of construction permits: Major, Minor and De Minimis permits, portable relocation permits, temporary permits, and permits-by-rule. Time restrictions, fees, necessary documents, etc. may vary depending on the type of permit required.
- Permit Applicability Determination
- Air Major Construction Permit (Section 7 and 8)
- Air De Minimis Construction Permit (Section 5) / Minor Construction Permit (Section 6)
- Air Portable Relocation Construction Permit (Section 4)
- Air Major New Source Review Hazardous Air Pollutant (HAP) Permit (Section 9)
- Air Temporary/ Pilot Construction Permit
- Air Permits-by-Rule Construction Permit
Hazardous air pollutants (HAPs), also known as toxic air pollutants or air toxics, are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects. EPA is working with state, local and tribal governments to reduce air emissions of 188 toxic air pollutants to the environment.
A few examples of toxic air pollutants include dioxin, asbestos, benzene, dioxin, methylene chloride, perchloroethylene, toluene, and metals such as cadmium, mercury, chromium and lead compounds.
The Application Process - This document explains the steps that the air program takes to process air permit applications. Although permits differ, the process essentially is the same for all construction permit applications. There are five steps to the permit process.
- Common Mistakes for Air De Minimis Construction Permits (Section 5)
- Common Mistakes for Air Minor Construction Permits (Section 6)
- Common Mistakes for Air Major Construction Permits (Section 7 and 8)
- Table of Hazardous Air Pollutants, Screening Model Action Levels and Risk Assessment Levels
- Table of Hazardous Air Pollutants and Screening Model Action Levels
Forms and Fact Sheets
- Application for Authority to Construction MO 780-1323
- Application for Authority to Construct Instructions Fact Sheet, April 2021
- Pre-Construction Prohibition Waiver Fact Sheet PUB2014
- Portable Source Relocation Request MO 780-2803
- Application for Authority to Construction Permit-by-Rule Crematories and Animal Incinerators MO 780-1888
- Application for Authority to Construction Permit-by-Rule Livestock Markets MO 780-1886
- Application for Authority to Construction Permit-by-Rule Printing Operations MO 780-1889
- Application for Authority to Construction Permit-by-Rule Surface Coating Operations MO 780-1887
Submit completed application to the Air Pollution Control Program electronically at CPAirApplications@dnr.mo.gov or by mail to Missouri Department of Natural Resources, Air Pollution Control Program, PO Box 176, Jefferson City, MO 65102-0176.
New Source Review Permits
The department's Air Pollution Control Program is in the process of updating forms to remove the requirement to submit "Parent Company" information. In the meantime, companies using these forms or applications are not required to submit Parent Company information. We apologize for any inconvenience this may cause. Please contact the Air Pollution Control Program at 573-751-4817 with any questions.
Permit Assistance, Information and Resources
- Issued and Pending Air Permits
- Forms and Applications
- Citizens Guide to Air Permits
- Air Pollution Compliance Regulatory Assistance