EPA and the Army Corps of Engineers are setting “brighter lines” for determining the scope of the Clean Water Act (CWA) in their final rule on the water law's reach, aiming to address concerns about uncertainty in the proposed version of the rule -- such as clarifying when waters have a “significant nexus” triggering CWA jurisdiction.
Makers and suppliers of the solvent n-propyl bromide (nPB) are defending the chemical against years-old efforts by the makers of other solvents and New York for EPA to list nPB as a Clean Air Act hazardous air pollutant (HAP) subject to strict air toxics rules, arguing the listing petitions contain outdated and inaccurate information.
A federal appeals court has rejected Kansas' suit over EPA's rejection of its “good neighbor” state implementation plan (SIP) to curb interstate air pollution that the agency replaced with its Cross-State Air Pollution Rule (CSAPR), but the ruling offers few hints on how the court might rule on suits over dozens of other vetoed SIPs.
EPA plans to release its package of greenhouse gas (GHG) rules for existing and newly constructed power plants in August, according to the agency's revised regulatory agenda.
A coal ash recycling firm is urging EPA to drastically increase its threshold for regulating large-scale coal ash fills in its new ash disposal rule, arguing the limit is based on a "math error" and risks discouraging beneficial reuse of ash in products by erroneously subjecting some facilities to stringent regulatory mandates.
Changes resulting from the White House review of EPA's recently proposed rule to collect data on nanoscale materials significantly altered the scope of substances that companies must report, though an industry source says the changes show federal officials wrestling to craft practical requirements, while an environmentalist says certain changes downplay the prevalence and risk of the novel substances.
Two Senate committees are poised to consider legislation this week that would block EPA and the Army Corps of Engineers' pending joint final rule defining the scope of the Clean Water Act (CWA), and require the agencies to craft a new version of the policy. Meanwhile, comments are due this week on EPA's rule outlining how states should implement its 2012 fine particulate matter (PM2.5) national ambient air quality standard (NAAQS).
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