The Environmental Protection Agency published a 377-page proposed rule in the Federal Register on Tuesday aimed at cutting tailpipe emissions from automobiles, The Hill reports, nearly two months after the controversial regulation was first proposed.

The new tailpipe standards — called Tier 3 — would require refiners to reduce the sulfur content of gasoline by more than 60 percent and the amount of nitrogen oxides by 80 percent.

The EPA says that Tier 3 will raise gasoline prices by less than a penny per gallon and yield more than $10 billion annually in health cost savings by 2030.

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