The US Environmental Protection Agency released its final amendments to state implementation plan (SIP) requirements for states to implement the 2015 National Ambient Air Quality Standard (NAAQS) to control ground-level ozone formation on Nov. 8. “This final rule grants states the flexibilities they need to incorporate factors that are often outside their control, such as international air pollution, so they can meet the 2015 ozone standards and continue our nation’s tremendous clean air progress,” EPA Acting Administrator Andrew Wheeler said.

Source: News