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1995 Cadillac Seville disengaged emissions controls whenever heat or air conditioning was on. In 1995, General Motors was ordered to recall 470,000 model year 1991 through 1995 Cadillacs and pay an $11 million fine for programming the car's electronic control unit (ECU) to enrich the fuel mixture any time the car's air conditioning or cabin heat was operating, since the EPA tests are conducted ...
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 Justice Department accuses Cummins of installing defeat devices — which can bypass or defeat emissions controls — on 630,000 2013-2019 Ram 2500 and 3500 pickup truck engines, as well as ...
The Washington Post also reported that in the late 1990s, EPA engineers at Virginia Testing Laboratory had built a system called ROVER, designed to test a car's emissions on the road. The project was shut down in 2001, despite preliminary tests indicating gaps between emissions from lab tests and real world tests of about 10 to 20 percent.
Engine manufacturer Cummins Inc. has agreed to pay a $1.675 billion penalty for allegedly installing "defeat devices" on approximately 1 million pickup trucks to cheat emissions tests.
The N.C. Division of Air Quality will ask the U.S. EPA to approve a plan to end annual emissions inspections in 18 of the 19 counties where it is still required.
Early in the 1950s scientists discovered that vehicle emissions were a significant factor that had been causing the air quality to deteriorate. [7] This led to the introduction of vehicle emissions standards in California in 1966, furthermore due to the seriousness of the problem, in 1970 the Clean Air Act was introduced in order to regulate these standards all over the United States. [7]
The emissions testing program in Canyon County and Kuna began in 2010 because of an Idaho law that required vehicle emissions tests in airsheds where an ambient air pollutant is at or above 85% of ...