Transportation Conformity Emission Budget 

TABLE 6-7 

Motor Vehicle Emissions Budgets: PM2.5 

(Annual Average - Tons Per Day)* 

2009 2012 2014 2023 2030

VOC Baseline Inventory 196.0 162.1 144.1 99.1 83.2

New Defined Mobile Source 

Measures** 3.5 23.1 24.0 12.1 9.2

 Mobile Source Emission Budgets*** 193 139 121 87 74

 

2009 2012 2014 2023 2030

NOx Baseline Inventory 427.1 337.1 292.0 164.1 132.3

New Defined Mobile Source 

Measures** 0.3 71.2 91.9 33.7 9.4

 Mobile Source Emission Budgets*** 427 266 201 131 123

2009 2012 2014 2023 2030

PM2.5 Baseline Inventory 17.8 17.2 16.8 16.0 16.6

Re-entrained road dust (paved) 18.6 18.8 19.0 20.8 21.4

Re-entrained road dust (unpaved) 1.0 1.0 1.0 1.0 1.0

Road Construction dust 0.2 0.2 0.2 0.2 0.3

Adjusted Inventory 37.6 37.2 37.0 38.0 39.3

New Defined Mobile Source 

Measures** 0.0 3.3 4.6 1.6 0.4

 Mobile Source Emission Budgets*** 38 34 33 37 39

* 2030 budget is applicable to all future years beyond 2030. 

** Based on CARB’s Proposed State Strategy for California’s 2007 SIP affecting on-road 

 mobile categories (w/o long-term strategies) 

*** Rounded up to the nearest ton. PM2.5 emissions are expected to continue to increase in 

 2023 and beyond due to increases in VMT. This increase is nominal and will be offset by 

 decreases in NOx emissions such that the 2014 PM2.5 ambient air quality standard will be 

 maintained. 
TABLE 6-8 

Motor Vehicle Emissions Budgets: 8 Hour Ozone 

(Summer Planning - Tons Per Day)* 

* 2023 budget is applicable to all future years beyond 2023. 

** Based on CARB’s Proposed State Strategy for California’s 2007 SIP affecting on-road mobile 

 categories (w/o long-term strategies) 

*** Rounded up to the nearest ton. 

 2008 2011 2014 2017 2020 2023

VOC Baseline Inventory 213.8 175.3 147.9 129.2 114.0 103.2

New Defined Mobile Source 

Measures** 3.9 22.9 24.6 20.2 15.6 12.4

 Mobile Source Emissions*** 210 153 124 109 99 91

 

2008 2011 2014 2017 2020 2023

NOx Baseline Inventory 441.3 354.5 286.8 231.5 183.6 161.3

New Defined Mobile Source 

Measures** 0.3 56.6 91.4 65.3 45.7 33.5

Mobile Source Emissions*** 441 298 196 167 138 128
TABLE 6-9 

Motor Vehicle Emissions Budgets: 1 Hour Ozone 

(Summer Planning - Tons Per Day)* 

 

* 2010 budget is applicable to all future years beyond 2010. 

 ** Based on CARB’s Proposed State Strategy for California’s 2007 SIP affecting 

 on-road mobile categories (w/o long term strategies) 

 *** Rounded up to the nearest ton. 

TABLE 6-10 

Preliminary Motor Vehicle Emissions Budgets: Carbon Monoxide 

(Winter Planning - Tons Per Day)* 

 2005 2010 2015 2020

CO Baseline Inventory 2,888 2,137 2,137 2,137

New Defined Mobile Source 

Measures 0.0 0.0 0.0 0.0

 Mobile Source Emission Budgets** 2,888 2,137 2,137 2,137

* 2015 budget being the last year of the maintenance plan is applicable to future years 

** Rounded up to the nearest ton. 

 2008 2010 

VOC Baseline Inventory 213.7 185.7 

New Defined Mobile Source 

Measures** 3.9 22.0 

 Mobile Source Emissions*** 210 164 

 

2008 2010 

NOx Baseline Inventory 441.3 379.3 

New Defined Mobile Source 

Measures** 0.3 40.0 

Mobile Source Emissions*** 441 340 
TABLE 6-11 

Motor Vehicle Emissions Budgets: Nitrogen Dioxide 

(Winter Planning - Tons Per Day)* 

 2002 

NO2 Baseline Inventory 682.0 

New Defined Mobile Source Measures 0.0 

 Mobile Source Emission Budgets** 682 

* 2002 budget is applicable to all future years and beyond 

2020 

** Rounded up to the nearest ton. 
Coachella Valley 

TABLE 8-5 

Motor Vehicle Emissions Budgets: 8-hour Ozone 

(Summer Planning - Tons Per Day)* 

* 2017 budget is applicable to all future years beyond 2017. 

** Based on CARB’s Proposed State Strategy for California’s 2007 SIP affecting on-road mobile 

 categories (w/o long-term strategies) 

*** Rounded up to the nearest ton. These budgets account for an area previously outside the 

 transportation modeling boundary but within the Coachella portion of the Salton Sea Air Basin non 

 attainment area. These emissions are in a downwind, mostly uninhabited, mountainous area and do 

 not effect the attainment demonstration for the nonattainment area. 

 2008 2011 2014 2017 2018

VOC Baseline Inventory 8.4 7.1 6.1 5.3 5.1

New Defined Mobile Source Measures** 0.1 1.1 1.6 1.1 1.0

 Mobile Source Emissions Budgets*** 9 6 5 5 5

 

2008 2011 2014 2017 2018

NOx Baseline Inventory 43.8 35.0 26.7 20.8 19.4

New Defined Mobile Source Measures** 0.0 5.9 10.5 7.1 6.4

 Mobile Source Emissions Budgets*** 44 30 17 14 13
TABLE 8-6 

Motor Vehicle Emissions Budgets: 1 Hour Ozone 

(Summer Planning - Tons Per Day)* 

* 2007 budget is applicable to all future years beyond 2007. 

** Based on CARB’s Proposed State Strategy for California’s 

 2007 SIP affecting on-road mobile categories (w/o long-term strategies) 

*** Rounded up to the nearest ton. These budgets account for an 

 area previously outside the transportation modeling boundary 

 but within the Coachella portion of the Salton Sea Air Basin non 

 attainment area. These emissions are in a downwind, mostly uninhabited, 

 mountainous area and do not effect the attainment demonstration for the 

 nonattainment area. 

 2007 

VOC Baseline Inventory 8.9 

New Defined Mobile Source 

Measures**

0.0 

 Mobile Source Emissions*** 9 

 

2007 

NOx Baseline Inventory 45.8 

New Defined Mobile Source 

Measures**

0.0 

Mobile Source Emissions*** 46