SIP Proposal: Tennessee (conditional approval of revisions establishing alternative monitoring, recordkeeping, and reporting requirements under the Nitrogen Oxides SIP Call).

SIP Approval: Tennessee (alternative monitoring, recordkeeping, and reporting requirements under the Nitrogen Oxides SIP Call).

SIP Approval: South Carolina (control program pursuant to nitrogen oxides SIP call obligations, removal of Clean Air Interstate Rule program rules, and alternative monitoring option for certain sources).

SIP Approval: Indiana (revisions regarding nitrogen oxides SIP call and Clean Air Interstate Rule trading program).

SIP Proposal: Tennessee (revisions to nitrogen oxides SIP call requirements for stationary boilers and combustion turbines). 

SIP Proposal: South Carolina (control program pursuant to the nitrogen oxides SIP call and removal of Clean Air Interstate Rule program rules).

EPA issued an interim final rule to amend emissions reporting regulations applicable to sources that monitor and report emissions under the Acid Rain Program, the Cross-State Air Pollution Rule, and/or the Nitrogen Oxides SIP Call; the amendments provide that if an affected unit fails to complete a required quality-assurance, certification or recertification, fuel analysis, or emission rate test by the applicable deadline under the regulations because of travel, plant access, or other safety restrictions implemented to address the current COVID-19 national emergency and if the unit's actual monitored data would be considered valid if not for the delayed test, the unit may temporarily continue to report actual monitored data instead of substitute data.

SIP Withdrawal: Indiana (revisions regarding nitrogen oxides SIP call and Clean Air Interstate Rule trading program).

SIP Approval: Ohio (approval of alternative monitoring options for certain covered sources for nitrogen oxides SIP call).

SIP Proposal: Indiana (revisions regarding nitrogen oxides SIP call and Clean Air Interstate Rule trading program).