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Stellantis Facilities (formerly FCA)

Stellantis Jefferson North Assembly Plant
Environment, Great Lakes, and Energy

Stellantis Facilities (formerly FCA)

Air Quality Information

Stellantis, also known as FCA or Fiat Chrysler America, operates automotive manufacturing at numerous locations on the east side of Michigan. The making of a car is a complicated process that requires many steps and thousands of parts.

Not every location makes every part of the car as different machines and expertise is needed to finish the car. Many locations have processes with air emissions and must comply with air quality rules and regulations, have air permits, and have regular inspections by EGLE staff. This webpage lays out the different locations and provides links and information about each location.

Facility Information

Announcement

Rescheduled for September 5: Informational Session and Public Hearing for FCA Mack Plant Proposed Air Permit

We have extended the public comment period to September 9, and rescheduled the public meeting and hearing to September 5, for the proposed air permit requested by FCA’s Mack Plant.  This is a request to modify their current permit to add requirements for the continued operation of a second air pollution control device and to increase how much particulate matter they are allowed to emit. The comment period has remained open, any comments already submitted on this proposed action will be considered in the final decision. Find more information at Michigan.gov/EGLEAirPublicNotice.

Attend the informational session and public hearing on September 5 at 6:00 pm.

  • Attend in person at the Samaritan Center located at 5555 Conner Street, Detroit MI, 48213.
  • Call in to listen at 636-651-3142 and use conference code 374288. EGLE staff will be available to answer questions and provide assistance if needed.

Detroit Assembly Complex

The Detroit Assembly Complex consists of the Mack Assembly and the Jefferson North Assembly Plants. The Mack Assembly plant has recently been converted from an engine plant to an assembly plant. Operations at these two locations now primarily include painting and assembly. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several air Permits to Install rolled into a Renewable Operating Permit and an application under review.

Updates

  • November 2024: Air Permit No. 14-19B has been issued with changes based on public comments. The permit changes include correction to the stack testing methodology and the removal of obsolete footnotes and stacks. More information can be found in the Response to Comments document and on our public notice page, under “Final Decisions”.

    EGLE sought public input during the comment period. A hybrid informational session and a public hearing were held as part of the public comment period.
  • July 2024: We have extended the public comment period to September 9, and rescheduled the public meeting and hearing to September 5, for the proposed air permit requested by FCA’s Mack Plant.  This is a request to modify their current permit to add requirements for the continued operation of a second air pollution control device and to increase how much particulate matter they are allowed to emit. The comment period has remained open, any comments already submitted on this proposed action will be considered in the final decision. Find more information at Michigan.gov/EGLEAirPublicNotice.     
  • June 2024: EGLE opened a public comment period on an air permit for the Detroit Assembly Complex – Mack Plant on July 12. The company is requesting to modify their current Permit to Install 14-19A for the existing automotive assembly plant by adding requirements for the continued operation of a second regenerative thermal oxidizer (RTO2) and increasing particulate matter emission limits. More information on how to submit comments or learn more about this request, can be found at Michigan.gov/EGLEAirPublicNotice.
  • March 2024: The consent order between EGLE and the FCA Jefferson North Assembly Plant has been finalized without changes. FCA has been in compliance with the 12-month rolling 4.8 lbs volatile organic compound per job emission limit since September 2023.  More details about the decision and the final Consent Order are below:

    More information about the enforcement action, how to attend the meeting, and submitting comments can be found at Michigan.gov/EGLEAirPublicNotice (choose “Compliance/Consent Orders).

  • February 2024: The Stellantis Detroit Assembly Complex Mack (DACM) installed and began operating an air pollutant control device called a regenerative thermal oxidizer (RTO) in June 2023.  The control device, RTO2, was installed to reduce odors and resulted from an enforcement action. This action included mitigation measures that resolved multiple verified odor violations issued to the company.
  • January 2024: An on-line informational session and public hearing was held on January 9, 2024, at 6:00 PM EST.

Mack Assembly Plant

(Formerly Mack Engine Plant) Historic Information: Almost all equipment contained in this plant has been retired with the switch from engine work to assembly work. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

Warren Truck Assembly Plant

The Warren Truck plant is an automotive assembly plant. Operations primarily include painting and assembly.

Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

Warren Stamping Plant

The Warren Stamping Plant is metal stamping and shaping plant that makes larger metal automotive parts. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install. This location is included in the Renewable Operating Permit for the Warren Truck Assembly Plant.

 

Sterling Heights Assembly Plant

The Sterling Heights Assembly Plant is an automotive assembly plant. Operations primarily include painting and assembly. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

Sterling Heights Stamping Plant

The Sterling Heights Stamping Plant is metal stamping and shaping plant that makes larger metal automotive parts. Information on inspections, and if applicable, stack tests, violation notices and the company's response to those violations, is available. Information is available on inspections, stack test, violation notices, and the company's response to those violations. This location does not currently have any Air Permits to Install or Renewable Operating Permits.

 

Trenton Engine Plant

The Trenton Engine Plant builds and tests automotive engines. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

FCA / Chrysler Technology Center

FCA Tech Center performs research and development for automobile, light duty truck, and vehicle component manufacturing. Operations include dynamometer test cells, pilot assembly processes, test painting, and various lab activities. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

Dundee Engine Plant

The Dundee Engine Plant builds and tests automotive engines. Information is available on inspections, stack test, violation notices, and the company's response to those violations. The company also has several Air Permits to Install rolled into a Renewable Operating Permit.

 

FCA US, LLC

This facility has an Air Permit to Install for several back-up generators.