EPA releases final classifications and attainment deadlines for 70 ppb ozone standard.

March 30, 2018

On March 1, 2018, EPA released a final rule defining non-attainment area classifications under the 2015 ozone standard, along with attainment deadlines for each classification according to a March 5, 2018 report from Environmental Law and Policy Monitor.

The rule finalizes the classifications and deadlines that were originally proposed by the Obama administration in a proposed rule issued on November 17, 2016 which lowered the ozone national ambient air quality standard from 75 to 70 parts per billion (ppb). (81 Fed. Reg. 81,276).

According to Section 181(a)(1) of the Clean Air Act, nonattainment areas must be classified at the time of designation, so this rulemaking clears the way for EPA to issue final designations for the 2015 standard. The air quality thresholds for each classification and the associated attainment deadlines are listed in the chart above. The final rule has not yet been published in the Federal Register.

What this means to you
On March 1, 2018, EPA released a final rule defining nonattainment area classifications under the 2015 70 ppb ozone standard, along with attainment deadlines for each classification

MIRATECH can help
Contact MIRATECH for answers to stationary engine emission control questions.