SIP Proposal: Vermont (new source review permitting regulations).

SIP Proposal: Vermont (new source review permitting regulations).

SIP Proposal: North Carolina (interstate transport infrastructure requirements for the 2010 one-hour nitrogen dioxide NAAQS).

SIP Proposal: North Carolina (interstate transport infrastructure requirements for the 2010 one-hour nitrogen dioxide NAAQS).

SIP Proposal: North Carolina (interstate transport infrastructure requirements for the 2010 one-hour nitrogen dioxide NAAQS).

EPA proposed to add 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of "volatile organic compounds" on the basis that this compound makes a negligible contribution to tropospheric ozone formation.

EPA proposed to add 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of "volatile organic compounds" on the basis that this compound makes a negligible contribution to tropospheric ozone formation.

EPA proposed to add 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of "volatile organic compounds" on the basis that this compound makes a negligible contribution to tropospheric ozone formation.

EPA proposed to add 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of "volatile organic compounds" on the basis that this compound makes a negligible contribution to tropospheric ozone formation.

EPA proposed to add 1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number 406-78-0) to the list of compounds excluded from the regulatory definition of "volatile organic compounds" on the basis that this compound makes a negligible contribution to tropospheric ozone formation.