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City of Pleasanton
<br />GHG Inventory, Forecast, and Targets Methodology and Calculations
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<br />identified several existing State programs and targets, or known commitments required by statute
<br />which can be assumed to achieve GHG reductions without City action, such as increased fuel efficiency
<br />standards of mobile vehicles. The following known commitments are factored into the adjusted
<br />scenario projection and a summary of the programs can be found in Table 22.
<br />State programs will lead to a reduction of 233,683 MT CO2e in GHG emissions by 2050 in Pleasanton.
<br />The increasing decarbonization of the electricity supply due to SB 100 and the Renewable Portfolio
<br />Standard (RPS) will lead to GHG emissions reductions in Pleasanton and avoid over 72,991 MT CO2e by
<br />2050. The transportation sector will experience the largest GHG reductions, with over 151,996 MT
<br />CO2e reduced by 2050 through State and federal fuel efficiency and tailpipe emissions standards
<br />assuming no change to current legislation.
<br />Table 22 Summary of Legislative Reductions Legislation
<br />
<br />2020
<br />(MT CO2e)
<br />2025
<br />(MT CO2e)
<br />2030
<br />(MT CO2e)
<br />2035
<br />(MT CO2e)
<br />2040
<br />(MT CO2e)
<br />2045
<br />(MT CO2e)
<br />2050
<br />(MT CO2e)
<br />Senate Bill 100 6,596 17,692 29,208 42,522 56,198 70,720 72,991
<br />Title 24 217 548 1,338 3,477 5,133 1,883 2,381
<br />Transportation (Pavley,
<br />etc.) 22,973 67,430 103,931 126,264 139,416 146,985 151,996
<br />Total 29,786 85,670 134,477 172,262 200,746 224,576 233,683
<br />MT CO2e: metric tons of carbon dioxide equivalent
<br />Transportation Legislation
<br />The CARB EMFAC2017 transportation modeling program incorporates legislative requirements and
<br />regulations including Advanced Clean Cars program (Low Emissions Vehicles III, Zero Emissions Vehicles
<br />program, etc.), and Phase 2 federal GHG Standards. Signed into law in 2002, AB 1493 (Pavley
<br />Standards) required vehicle manufactures to reduce GHG emissions from new passenger vehicles and
<br />light trucks from 2009 through 2016, with a target of 30 percent reductions by 2016, while
<br />simultaneously improving fuel efficiency and reducing motorists’ costs.53
<br />Prior to 2012, mobile emissions regulations were implemented on a case-by-case basis for GHG and
<br />criteria pollutant emissions separately. In January 2012, CARB approved a new emissions-control
<br />program (the Advanced Clean Cars program) combining the control of smog, soot causing pollutants,
<br />and GHG emissions into a single coordinated package of requirements for passenger cars and light
<br />trucks model years 2017 through 2025. The Advanced Clean Cars program coordinates the goals of the
<br />Low Emissions Vehicles, Zero Emissions Vehicles, and Clean Fuels Outlet programs. However, in 2019
<br />the federal government issued a final action entitled the One National Program on Federal Preemption
<br />of State Fuel Economy Standards Rule, which finalized Part I of the Safer, Affordable, Fuel-Efficient
<br />(SAFE) Vehicles Rule and stated that federal law preempts state and local tailpipe GHG emissions
<br />standards as well as zero emission vehicle mandates. While still in flux, under the SAFE Rule discussed
<br />above, fuel economy and GHG emission standards for new vehicles may not improve beyond model
<br />year 2020. According to CARB, the federal rollback proposal of the remaining Advanced Clean Cars
<br />
<br />53 California Air Resources Board. 2013.Clean Car Standards – Pavley, Assembly Bill 1493.
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