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In 1998 the regulation included engines under 37 kW and introduced more stringent Tier 2 and Tier 3 standards which was scheduled to be phased in between 2000 and 2008. In 2004, US EPA introduced the more stringent Tier 4 standards which was scheduled to be phased in between 2008 and 2015.
The following is a list of diesel-electric locomotives that meet or exceed EPA Tier 4 locomotive emissions regulations. Pages in category "EPA Tier 4-compliant locomotives of the United States" The following 5 pages are in this category, out of 5 total.
In the United States, emissions standards are managed by the Environmental Protection Agency (EPA). It uses tiers to identify emission standards for cars, trucks and other motor vehicles. [ 8 ] In 2014, the EPA published its "Tier 3" standards for these vehicles, which tightened air pollution emission requirements and lowered the sulfur content ...
To help meet NOAA's goal of reducing its carbon footprint, each ship incorporates high-efficiency diesel engines that comply with strict Environmental Protection Agency (EPA) Tier IV final emissions requirements, stack-gas emission controls, and other technologies which NOAA estimates will save 15,000 US gallons (57,000 L; 12,000 imp gal) of ...
[3]: 4 As a requirement of the ARB funding, the locomotive was used for three emissions tests: a baseline test completed in October 2013, a test after 1,500 hours of use completed in May 2014, and a final test after 3,000 hours of use completed in October 2014. The ARB verified the prototype locomotive as passing the Tier 4 standard. [3]: 4
To help meet NOAA's goal of reducing its carbon footprint, each ship incorporates high-efficiency diesel engines that comply with strict Environmental Protection Agency (EPA) Tier IV final emissions requirements, stack-gas emission controls, and other technologies which NOAA estimates will save 15,000 US gallons (57,000 L; 12,000 imp gal) of ...
SCR systems are now the preferred method for meeting Tier 4 Final and EURO 6 diesel emissions standards for heavy trucks, cars and light commercial vehicles. As a result, emissions of NOx, particulates , and hydrocarbons have been lowered by as much as 95% when compared with pre-emissions engines.
The EPA Federal Test Procedure, commonly known as FTP-75 for the city driving cycle, are a series of tests defined by the US Environmental Protection Agency (EPA) to measure tailpipe emissions and fuel economy of passenger cars (excluding light trucks and heavy-duty vehicles).