In the United States, light-duty vehicles made up over 85 percent of the total emissions defect reports made to the Environmental Protection Agency, followed by heavy-duty highway vehicles. Light-duty vehicles' emissions defect reports have increased by a quarter between 2016 and 2017.
Emissions defect reports in the United States in 2017, by vehicle type
The source gives the following supplementary information: "An emissions-related defect is a defect in design, materials or workmanship in a device, system or
assembly as described in a vehicle’s application for certification previously approved by the EPA".
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Stout Risius Ross. (January 1, 2020). Emissions defect reports in the United States in 2017, by vehicle type [Graph]. In Statista. Retrieved November 22, 2024, from https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/
Stout Risius Ross. "Emissions defect reports in the United States in 2017, by vehicle type." Chart. January 1, 2020. Statista. Accessed November 22, 2024. https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/
Stout Risius Ross. (2020). Emissions defect reports in the United States in 2017, by vehicle type. Statista. Statista Inc.. Accessed: November 22, 2024. https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/
Stout Risius Ross. "Emissions Defect Reports in The United States in 2017, by Vehicle Type." Statista, Statista Inc., 1 Jan 2020, https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/
Stout Risius Ross, Emissions defect reports in the United States in 2017, by vehicle type Statista, https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/ (last visited November 22, 2024)
Emissions defect reports in the United States in 2017, by vehicle type [Graph], Stout Risius Ross, January 1, 2020. [Online]. Available: https://www.statista.com/statistics/1276778/emissions-defect-reports-by-vehicle-type/