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Vehicle size classes are series of ratings assigned to different segments of automotive vehicles for the purposes of vehicle emissions control and fuel economy calculation. . Various methods are used to classify vehicles; in North America, passenger vehicles are classified by total interior capacity while trucks are classified by gross vehicle weight rating (GV
FMVSS are currently codified in Title 49 of the Code of Federal Regulations, Part 571, Subpart B (49 CFR 571), with each FMVSS standard as a section of Part 571, e.g., FMVSS Standard No. 101 is 49 CFR 571.101.
In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp). In 1998 the regulation included engines under 37 kW and introduced ...
The program covered model year 2012 to model year 2016 and ultimately required an average fuel economy standard of 35.5 miles per US gallon (6.63 L/100 km; 42.6 mpg ‑imp) in 2016 (of 39 miles per gallon for cars and 30 mpg for trucks), a jump from the 2009 average for all vehicles of 25 miles per gallon. Obama said, "The status quo is no ...
Gross axle weight rating: lb/axle lb/axle kg/axle durability, economics lower is better for road and vehicle performance and taxation; larger is usually better for large goods vehicles carrying loads Ultimately limited by the hardness of the road surface and legal limits intended to limit damage to it
49 CFR 393.94: IS-12832: Vehicle exterior noise (noise pollution) UN R9, UN R41, UN R51, UN R63: 40 CFR 205.52: Environment (Protection) Amendment Rules: Electric vehicle warning sounds (AVAS) Regulation 540/2014, UN R138: FMVSS 141: Motorcycle helmets: UN R22 FMVSS 218 IS 4151 JIS T 8133:2000 AS/NZS 1698 Automotive lights: FMVSS 108: Front ...
In 1964 and 1966, public pressure grew in the United States to increase the safety of cars, culminating with the publishing of Unsafe at Any Speed, by Ralph Nader, an activist lawyer, and the report prepared by the National Academy of Sciences entitled Accidental Death and Disability: The Neglected Disease of Modern Society.
At first the RAC rating was usually representative of the car's actual (brake) horsepower, but as engine design and technology progressed in the 1920s and 1930s these two figures began to diverge, with engines making much more power than their RAC ratings suggested: by 1924 the 747 cc (45.6 cu in) engine of the Austin Seven (named for its 7 hp ...