Washington DC area avoids new pollution rules after EPA accepts 'exceptional events'
What happened
The US environmental regulators propose to declare the Washington, DC-MD-VA area has met 2015 ozone air quality standards. This decision means the area will not have to submit new plans to reduce air pollution.
Why it matters
The Washington DC area has struggled to meet ozone standards for years. This proposed decision allows the region to avoid stricter pollution controls and planning requirements. It also sets a precedent for how 'exceptional events' can be used to meet air quality targets, potentially allowing other areas to avoid new regulations.
The signal
Watch for public comments on this proposed rule, especially from environmental groups, and whether the final determination includes any new conditions or monitoring requirements.