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Â鶹ÊÓƵresponded to EPA's proposed rule to tighten the air quality standards for ground-level ozone this week in Engineering News-Record and AGC's Environmental Observer, and noted that the rule has resulted in restrictions on the operations of construction equipment around the country. AGC's Leah Pilconis commented on the rule in , and provided more detailed information in the For more information, contact Leah Pilconis at pilconisl@agc.org.