Nov 25, 2013

Air Quality State Implementation Plans; Approvals and Promulgations: Illinois

Nov 25, 2013 — ENVIRONMENTAL PROTECTION AGENCY Approval and Promulgation of Air Quality Implementation Plans; Illinois 
40 CFR Part 52  [EPA-R05-OAR-2013-0501; FRL-9902-26-Region 5]  

SUMMARY:  EPA is approving a request submitted by the Illinois Environmental Protection Agency (Illinois EPA) on July 3, 2013, to revise the Illinois state implementation plan (SIP). The submission amends the Illinois Administrative Code (IAC) by updating the definition of "Volatile organic material (VOM) or Volatile organic compound (VOC)" to add trans-1,3,3,3-tetra-flouropropene (HFO-1234ze) to the list of compounds excluded from the definition of VOM or VOC.  This revision is based on EPA's 2012 rulemaking which added HFO-1234ze to the list of chemical compounds that are excluded from the Federal definition of VOC because of their negligible contribution to the formation of tropospheric ozone.  

Please see & NOTE this is a Pre-release — Final Rule from Environmental Protection Agency