The Environmental Protection Agency (EPA) has approved changes to Washington's air quality plan, which were submitted in 2018. This approval confirms that Washington's plan satisfies federal requirements for controlling interstate pollution of sulfur dioxide, a harmful air pollutant. The EPA found that emissions from Washington will not significantly affect air quality in other states, meeting the standards set in 2010. This rule takes effect on March 22, 2021, and stakeholders can find more information or address inquiries as directed in the details provided by the EPA.
Simple Explanation
The EPA has agreed that Washington's new rules for cleaning the air are okay because they make sure the smoke and bad stuff in the air won't bother people in other places, and this will start being official on March 22, 2021.