The US Environmental Protection Agency issued final Tier 3 emissions control requirements for motor fuels and vehicles to meet by Jan. 1, 2017. The regulations address one major concern from refiners by keeping sulfur limits per gallon at existing levels, EPA Administrator Gina McCarthy said. “Frankly, what [the American Petroleum Institute] and others were relying on was an outdated estimate based on what they thought we’d propose, not what we actually proposed let alone what we actually put in the regulation following public hearings and extensive public comments,” McCarthy said during a Mar. 4 teleconference. “The per gallon sulfur cap...