SECTION 1.
The Legislature finds and declares all of the following:(a) Diesel-fueled trucks are responsible for 33 percent of statewide oxides of nitrogen emissions annually. These same trucks emit more particulate matter than all of the state’s powerplants.
(b) People who live near freeways and busy roadways are at high risk for exposure to these health-threatening air pollutants emitted by these medium- and heavy-duty vehicles.
(c) In 1998, the State Air Resources Board identified diesel particulate matter as a toxic air
contaminant based on published evidence of a relationship between diesel exhaust exposure and
lung cancer.
(d) Diesel particulate matter also contributes to noncancer health effects, like premature death, hospitalizations, and emergency department visits for exacerbated chronic heart and lung disease, including asthma, increased respiratory symptoms, and decreased lung function in children.
(e) Children are particularly vulnerable to the negative effect of diesel because they have higher respiration rates than adults and
this can increase their exposure to air pollutants relative to their body weight.
(f) Children exposed to high levels of diesel exhaust are five times more likely than other children to have underdeveloped lungs.
(g) Increased respiratory symptoms, such as cough wheeze, runny nose, and doctor-diagnosed asthma, have been linked to traffic exposure.
(h) Studies have shown that children who live in high-density traffic areas have higher rates of doctor visits for asthma and increased use of asthma medication than children who live near low-density traffic areas.
(i) Reducing emissions of these pollutants can have an immediate beneficial
impact on air quality and on public health.
(j) The largest source of the state’s greenhouse gas emissions comes from the transportation sector, accounting for nearly 50 percent of statewide emissions.
(k) While diesel-fueled trucks and buses make up just 3 percent of the vehicles on the state’s roads, they produce 23 percent of greenhouse gas emissions from the transportation sector.
(l) Nearly all of the diesel-related air quality challenges can be attributed to old diesel-fueled trucks still operating on California’s roads, which has prompted the State Air Resources Board to take actions to address these air quality challenges, making some progress in moving California toward cleaner medium- and heavy-duty vehicles,
including, but not limited to, the following measures:
(1) The On-Road Heavy-Duty Diesel Vehicles (In-Use) Regulation (Section 2025 of Title 13 of the California Code of Regulations), adopted on September 28, 2006, requires nearly all diesel-fueled trucks and buses that operate in California to be upgraded or replaced with 2010 model year engines or equivalent by January 1, 2023.
(2) The In-Use Off-Road Diesel-Fueled Fleets Regulation (Section 2025 of Title 13 of the California Code of Regulations), adopted on July 26, 2007, aims to reduce diesel particulate matter and oxides of nitrogen emissions from existing off-road heavy-duty diesel vehicles operating in California, such as vehicles used in construction, mining, and industrial operations.
(m) However, the state must take additional actions to immediately reduce health-threatening criteria air pollution and climate-threatening greenhouse gas emissions by outlining a clear path to convert medium- and heavy-duty vehicle segments, as well as off-road equipment, to cleaner technologies and fuels.
(n) Actions to reduce pollution and greenhouse gas emissions may include, but are not limited to, vehicle replacement, improved engine efficiency, fuels replacement, mode shifting, and operational efficiencies, including changes to vehicle deployment schedules.
(o) Providing consistent, multiyear funding is imperative to reduce emissions of criteria air pollutants and greenhouse gases associated with medium- and heavy-duty vehicles where this technology is commercially available but still costs a premium and to help support commercialization paths for new technologies that are not currently market ready.