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NO 2 is the oxide measured and used as the indicator for the entire NO x family as it is of the most concern due to its quick formation and contribution to the formation of harmful ground level ozone. [18] In 1971 the primary and secondary NAAQS for NO 2 were both set at an annual average of 0.053 ppm. The EPA reviewed this NAAQS in 1985 and ...
The EPA finalized a supplemental rulemaking to require five states - Iowa, Michigan, Missouri, Oklahoma, and Wisconsin - to make summertime NO x reductions under the CSAPR ozone season control program. [1] February 7, 2012: The EPA issued a minor adjustment to the rule. [1] June 5, 2012: The EPA issued another minor adjustment to the rule. [1 ...
Title 40 is a part of the United States Code of Federal Regulations.Title 40 arranges mainly environmental regulations that were promulgated by the US Environmental Protection Agency (EPA), based on the provisions of United States laws (statutes of the U.S. Federal Code).
In a 5-4 decision authored by Justice Scalia, the Supreme Court remanded the Tailoring Rule to EPA on the grounds that the Clean Air Act did not authorize the agency to regulate all the sources encompassed by the Rule. The Court determined that EPA could only require the "anyway" sources – those that participated in the PSD program because of ...
By Clark Mindock (Reuters) -Republican attorneys general from 27 U.S. states and industry trade groups sued the Environmental Protection Agency on Thursday, seeking to block a landmark rule ...
The Supreme Court generally upheld the EPA's powers through the Clean Air Act, through it vacated portions of the EPA's new rules affecting smaller sources. [89] Michigan v. EPA, 576 U.S. 743 (2015) In 2012, the EPA issued new rules that identified new pollutants such as mercury as hazardous materials to be regulated in power plant emissions.
The rules will replace former President Donald Trump's American Clean Energy rule and former President Barack Obama's Clean Power Plan, both of which were invalidated by courts. EPA to issue power ...
The administration repealed the Clean Water Rule and rewrote the EPA's pollution-control policies—including policies on chemicals known to be serious health risks—particularly benefiting the chemicals industry, [16] [17] A 2018 analysis reported that the Trump administration's rollbacks and proposed reversals of environmental rules would ...