BusinessGreen: The US Environmental Protection Agency (EPA) yesterday unveiled long-awaited vehicle emissions standards, confirming plans to slash the sulfur content of fuel and reduce smog across the country.
The agency released its so-called Tier 3 emissions standards, which are due to come into effect for cars and light trucks from 2017 in line with greenhouse gas emissions standards and are designed to cover air pollution-causing tailpipe emissions.
The EPA said the rules would cut sulfur emissions by...