### See second file associated with this docket entry on procedures to obtain these files

Run Name Run Description

TR_Base_Case_Final Base Case model run, which includes the national Title I V SO 2 cap-and-trade program; NO XSI P Call regional ozone season cap-and-trade program; and settlements and state rules. This run represents conditions without the proposed Transport Rule and without the rule it would replace (CAI R).

TR_SO2_500_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012, $500 per ton for Group 1 States in 2012 and 2013, $500 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR covered state.

TR_SO2_1600_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012, $500 per ton for Group 1 States in 2012 and 2013, $1,600 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR covered state.

TR_SO2_2300_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012, $500 per ton for Group 1 States in 2012 and 2013, $2,300 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR covered state.

TR_SO2_2800_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012, $500 per ton for Group 1 States in 2012 and 2013, $2,800 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR covered state.

TR_SO2_3300_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012, $500 per ton for Group 1 States in 2012 and 2013, $3,300 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR covered state.

TR_SO2_10,000_Final Im poses a marginal cost of $500 per ton of NOx year round in annual states starting in 2012, $500 per ton of ozone season NOx in ozone states starting in 2012, $500 per ton for SO2 year round in "Group 2" states starting in 2012. For SO2 "Group 1" states, a cap of 2.41 million tons is imposed in 2012 and 2013, and a cap of 344,000 ton is imposed in 2014 and each year thereafter for SO2. These caps were designed to reflect a 70% reduction from levels observed in the $500 per ton for Group 1 States in 2012 and 2013, $3,300 per ton for Group 1 states in 2014 and each year thereafter. Also forces all SCR and FGD to operate for relevant time period if in a TR
covered state. TR_NOX_OS_500_Final Im poses a marginal cost of $500 per ton of NOX reduced in the ozone season on each of 26 ozone states (including those identified in SNPR) starting in 2012. Also forces dispatchable SCRs to run in the ozone season if located in this region TR_NOX_OS_1000_Final Im poses a marginal cost of $1,000 per ton of NOX reduced in the ozone season on each of 26 ozone states (including those identified in SNPR) starting in 2012. Also forces dispatchable SCRs to run in the ozone season if located in this region 

### These files in their entirety are located on CD(s) contained in the DC Docket Center. The System Summary Report and State Level Emission IPM outputs for each file are also available electronically in the Transport Rule Docket.

Transport Rule Base Case

Additional runs used for analysis of significant contribution*TR_NOX_OS_5000_Final Im poses a marginal cost of $5,000 per ton of NOX reduced in the ozone season on each of 26 ozone states (including those identified in SNPR) starting in 2012. Also forces dispatchable SCRs to run in the ozone season if located in this region TR_NOX_500_Final Im poses a marginal cost of $500 per ton of NO Xreduced annually on each of 23 states in the annual region. Also forces SCRs to operate year round if located in this region TR_NOX_1000_Final Im poses a marginal cost of $1,000 per ton of NO Xreduced annually on each of 23 states in the annual region. Also forces SCRs to operate year round if located in this region TR_NOX_2500_Final Im poses a marginal cost of $2,500 per ton of NO Xreduced annually on each of 23 states in the annual region. Also forces SCRs to operate year round if located in this region

TR_Remedy_Final Models the air quality-assured trading final remedy described in the Transport Rule preamble with variability limits ranging from 10 to 20% TR_Remedy_Sensitivity_with_final_variability_limits Models the air quality-assured trading final remedy described in the Transport Rule preamble with variability limits of 18% for SO2 and Annual NOx, and 21% for ozone-season NOx



### TR_A-4_ Less_ Stringent_Final Remedy scenario similar to TR_Remedy_Final, but has SO2 budgets based on $1,600/ton instead of $2,300/ton



### TR_A-4_ More_ Stringent_Final Remedy scenario similar to TR_Remedy_Final, but has SO2 budgets based on $10,00/ton instead of $2300/ton



### TR_Assurance_Penalty_Scenario_Final Remedy scenario similar to TR_Remedy_Final, but allows states the option of exceeding its variability limit and paying penalty of two allowances per
ton exceeded.



### TR_No_FGD_in2014_Scenario_Final Remedy scenario similar to TR_Remedy_Final, but does not allow for FGD build in response to Transport Rule in 2014



### TR_Remedy_Sensitivity_final_variability_limits_no2014_FGD Remedy scenario similar to TR_Remedy_Sensitivity_with_final_variability, but does not allow for FGD build in reponse to Transport Rule in 2014



### TR_AQAT_Calibration Remedy scenario used solely for purposes of calibrating AQAT and CAMX



### TR_uncontrolled_ozone_states_Final Marginal cost scenario similar to TR_SO2_2300, but AR, I N, LA, MD, and MS did not have ozone season NOx marginal cost constraint



### TR_Remedy_Sensitivity_Subbit_Restrictions Remedy scenario similar to TR_Remedy_Sensitivity_with_final_variability_limits. Sensitivity analysis of the cost-effectiveness of Texas emission reductions under the Transport Rule while maintaining Texas lignite production and EGU lignite blending as high or higher than recent (EI A 2010) levels for 2012 and 2014 projections, as some commenters maintain would occur in the future. The purpose of this analysis is to determine whether and how Texas could make cost-effective emission reductions under its Transport Rule requirements if units did not reduce their blending of lignite coal recently reported to EI A. I n keeping with this sensitivity analysis, future lignite reserve assumptions in the model were realigned with 2010 lignite production levels, and Texas lignite blending units were not permitted to exceed their 2010 reported share of sub-bituminous blending. Transport Rule Remedy

Transport Rule Sensitivities and Additional Analysis