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Green Vehicles Glossary Definition (English)
ULEV Defined
The following is in context to Green Vehicles, because it's common for a single word to have multiple meanings you will find additional research links near the bottom of the page.
"Stands for "Ultra Low Emission Vehicle," which is one of four categories of emissions standards under the National Low Emission Vehicle regulations. In order to be certified as LEVs, vehicles must meet stringent emission levels for non-methane organic gases (NMOG), oxides of nitrogen (NOx) and carbon monoxide (CO) on emissions certification tests. ULEV is also a California standard about 65% more stringent than Tier 1 for smog-forming emissions."
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Additional ULEV Definition Starting Points
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