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Striped: Both safety and emissions testing required. In the United States, vehicle safety inspection and emissions inspection are governed by each state individually. Fifteen states have a periodic (annual or biennial) safety inspection program, while Maryland requires a safety inspection and Alabama requires a VIN inspection on sale or transfer of vehicles which were previously registered in ...
The Wisconsin Department of Transportation ( WisDOT) is a governmental agency of the U.S. state of Wisconsin responsible for planning, building and maintaining the state's highways. [4] It is also responsible for planning transportation in the state relating to rail, including passenger rail, public transit, freight water transport and air ...
Two sets, or tiers, of emission standards for light-duty vehicles in the United States were defined as a result of the Clean Air Act Amendments of 1990. The Tier I standard was adopted in 1991 and was phased in from 1994 to 1997. Tier II standards were phased in from 2004 to 2009. Within the Tier II ranking, there is a subranking ranging from ...
A target of 95 grams per kilometre applies from 2021. For light commercial vehicle, an emissions target of 175 g/km applies from 2017, and 147 g/km from 2020, [66] a reduction of 16%. The EU introduced Euro 4 effective 1 January 2008, Euro 5 effective 1 January 2010, and Euro 6 effective 1 January 2014.
This is a list of electricity-generating power stations in the U.S. state of Wisconsin, sorted by type and name. In 2019, Wisconsin had a total summer capacity of 15,312 MW through all of its power plants, and a net generation of 66,774 GWh. [2]
Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines. The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides. Starting in the 1950s and 1960s, various ...
In New Hampshire and Tennessee, the Division of Motor Vehicles and the Driver License Services Division, respectively, is a division of each state's Department of Safety (in Tennessee, Department of Safety and Homeland Security). In Vermont, the Department of Motor Vehicles is a subunit of the state Agency of Transportation.
On-board diagnostics (OBD) is a term referring to a vehicle's self-diagnostic and reporting capability. In the United States, this self-diagnostic is a requirement to comply with Federal Emissions standards to detect failures that may increase the vehicle tailpipe emissions to more than 150% of the standard to which it was originally certified.