EPA Proposes To Repeal Bush-Era 'Grandfathering' NSR Rule For Particles

摘要

EPA is proposing to repeal a Bush-era "grandfathering" rule allowing certain Clean Air Act new source review (NSR) permits to use large paniculate matter (PM10) as a "surrogate" for fine particles (PM2.5) - a practice critics say leads to weaker pollution controls - in the midst of an industry lawsuit over the Obama EPA's earlier stay of the rule.rnThe Feb. 4 proposed repeal of the grandfathering policy would also end early the PM10 surrogacy policy for states with EPA-approved state implementation plans (SIPs) to implement NSR and prevention of significant deterioration permits.