The Environmental Protection Agency has proposed a new set of rules for cleaner gasoline with lower sulfur content.

The Environmental Protection Agency has proposed a new set of rules for cleaner gasoline.

This proposed Tier 3 program refers to cleaner gasoline as well as stricter limits on pollution, even though obviously the oil industry has its objections. However, these new rules are supported by automakers since if approved will bring standards in U.S. into alignment to those applicable in California where gasoline has a low-sulfur content for reducing tailpipe emissions.

Car companies agree with this proposed rules package since it would be easier for them to sell the same cars in all fifty states. California rules will be applicable starting 2017 and refer to the use of advanced catalytic converters as well as other new features for making cars greener. The added equipment would increase a car's price by about 130 USD but reduce certain emissions by up to 80 percent. It is believed these new rules are going to prevent approximately 2,400 premature deaths caused by air pollution each year.

EPA's proposal about reducing sulfur content in gasoline will help carmakers sell vehicles with lean-burn gasoline direct-injection engines. If approved, the sulfur content will be reduced from 30 parts per million (ppm) to 10 parts per million by 2017, which is the same configuration available in California, Europe and Japan.

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