1. Los Angeles Smog Crisis (1940s–1970s)

   • What happened: LA experienced thick, choking smog due to car emissions, oil refineries, and industrial activity.

   • Impact: Led to creation of the California Air Resources Board (CARB) in 1967 and some of the strictest air pollution regulations in the world.

   • Legacy: Became the global case study for urban air pollution; spurred national policy like the U.S. Clean Air Act (1970).
     

2. Establishment of CARB (1967)

   • California created CARB to consolidate state efforts on clean air.

   • CARB became a world leader in vehicle emissions regulation and helped pioneer the Zero Emission Vehicle (ZEV) program.

   • Still the only U.S. state allowed to set its own stricter emissions standards under the Clean Air Act waiver.

Sources:

• https://images.app.goo.gl/ZnuhpLie2BJ2FnmLA
• https://images.app.goo.gl/xGkUsHUK4akfQ7zC8

3. Clean Air Act Waiver Fights (2000s–2020s)

   • Under Trump (2019): Waiver was revoked, challenging California’s authority to set tailpipe standards.

   • Under Biden (2021): Waiver was restored, reaffirming California’s climate leadership.

   • Impact: Key legal battleground over state vs federal environmental authority.

4. South Coast Air Basin PM2.5 and Ozone Levels

   • Includes LA, Orange, Riverside, and San Bernardino Counties.

   • Still ranked #1 in the U.S. for worst ozone and fine particle (PM2.5) pollution by the American Lung Association (2024).

   • Causes asthma, heart disease, and premature deaths—especially in children and the elderly.

5. Wildfire Smoke Pollution (2017–Present)

   • Wildfires have reversed progress in clean air, especially during summers.

   • Smoke causes massive spikes in PM2.5, leading to school closures, hospitalizations, and even air quality worse than Beijing or Delhi on some days.

   • Example: During 2020 fires, San Francisco turned orange and AQI exceeded 400 in some cities.

6. Port Pollution (Long Beach & LA)

   • The twin ports are major sources of diesel soot from ships, trucks, and trains.

   • Surrounding communities (e.g., Wilmington, West Long Beach) experience some of the worst asthma rates in the country.

   • CARB now mandates zero-emission trucks and cleaner cargo handling equipment by 2035.

7. Diesel Death Zones: The Central Valley

   • Fresno, Bakersfield, and Stockton frequently top national lists for worst particle pollution.

   • Sources: diesel trucks, farming dust, pesticide drift, and factory emissions.

   • Heavy burden on Latino and low-income communities—key environmental justice issue.

8. Zero Emission Vehicle (ZEV) Mandate

   • California requires that 100% of new cars sold by 2035 be ZEVs (electric or hydrogen).

   • Part of a broader plan to cut smog-forming NOx and PM emissions from tailpipes.

   • ZEV adoption also includes trucks and buses: electric school buses, drayage trucks, etc.

9. Air Quality Monitoring & AB 617 (2017)

   • Law mandates community air monitoring in environmental justice areas.

   • Includes real-time air sensors, community engagement, and targeted clean-up plans in places like Stockton, Richmond, and South Central LA.

   • Funded through CARB and local Air Quality Management Districts.

The California Air Resources Board (CARB) is a government agency within the California Environmental Protection Agency. Its main mission is to promote and protect public health, welfare, and ecological resources through the effective reduction of air pollutants.

🔧 1. Regulates Air Pollution

CARB sets and enforces regulations to reduce emissions from:

• Vehicles (cars, trucks, buses, off-road vehicles)

• Fuels (gasoline, diesel, renewable fuels)

• Industrial sources (factories, refineries, power plants)

• Consumer products (paints, cleaning agents, etc.)

CARB’s vehicle emission standards are often stricter than federal ones — and other states can choose to adopt CARB standards.

🌱 2. Climate Change Programs

CARB is a leader in climate change policy. Key programs include:

• Cap-and-Trade Program: Limits total greenhouse gas (GHG) emissions and allows trading of emission allowances.

• Low Carbon Fuel Standard: Reduces carbon intensity of fuels sold in California.

• Advanced Clean Cars Program: Promotes zero-emission vehicles (ZEVs) like electric and hydrogen cars.

🔬 3. Scientific Research & Monitoring

CARB conducts air quality research, modeling, and health studies. It also:

• Operates a statewide air monitoring network

• Tracks pollutants like ozone, PM2.5, and greenhouse gases

• Evaluates health impacts of air pollution

🌱🤝 4. Collaboration & Enforcement

• Works with federal (e.g. EPA), state, and local agencies

• Enforces penalties for pollution violations

• Supports community air protection, especially in disadvantaged areas

🏙️ 5. Community Air Protection

Under AB 617 (2017), CARB:

• Works with local air districts to reduce pollution in vulnerable communities
• Supports community-based air monitoring and emission reduction plans

🌱Key California Legislation for Sustainable Transportation & Air Quality

1. Clean Air Act (Federal, with CA Waivers)

• What it does: Although federal, California has special authority (Section 209 of the Clean Air Act) to set its own stricter vehicle emissions standards.
• Impact: CARB uses this waiver to enforce tough tailpipe emissions, ZEV mandates, and fuel standards.

2. Assembly Bill 32 (AB 32) – Global Warming Solutions Act of 2006

• What it does: Mandates California to reduce greenhouse gas (GHG) emissions to 1990 levels by 2020.
• Tools used: Created the Cap-and-Trade Program, promoted clean energy, and enabled sector-wide emission reductions.
• Impact: Foundation for California’s climate and clean transportation policies.

3. Senate Bill 375 (SB 375) – Sustainable Communities and Climate Protection Act (2008)

• What it does: Links transportation planning with land use to reduce vehicle miles traveled (VMT).

• Requires: Metropolitan planning organizations (MPOs) to develop Sustainable Communities Strategies (SCS) aligning with climate targets.

• Impact: Promotes public transit, walkable neighborhoods, and reduced car dependency.

4. Senate Bill 743 (SB 743, 2013)

• What it does: Reforms environmental review under CEQA to emphasize vehicle miles traveled (VMT) instead of just traffic delay. -Impact: Encourages transit-oriented development and sustainable urban growth.

5. Senate Bill 1 (SB 1) – Road Repair and Accountability Act (2017)

• What it does: Raises fuel taxes to fund transportation infrastructure, including public transit and bicycle/pedestrian projects.

• Impact: Provides billions annually for multimodal transportation improvements.

6. Assembly Bill 617 (AB 617, 2017) – Community Air Protection

• What it does: Targets air pollution in disadvantaged communities through local emissions monitoring and reduction plans.

• Impact: Empowers communities and ensures environmental justice.

7. Executive Orders Supporting Zero-Emission Vehicles

• EO N-79-20 (2020): Requires all new passenger vehicles sold in CA to be zero-emission by 2035, and medium- and heavy-duty trucks by 2045 where feasible.

• Impact: Accelerates shift to EVs, hydrogen fuel cell vehicles, and electrified freight.

8. Low Carbon Fuel Standard (LCFS)

• What it does: Requires fuel providers to reduce carbon intensity of transportation fuels over time.

• Impact: Promotes use of biofuels, electricity, hydrogen, and renewable natural gas.

9. Advanced Clean Trucks (ACT) & Advanced Clean Cars (ACC) Regulations

• ACT (2020): Requires manufacturers to sell an increasing share of zero-emission trucks.

• ACC (Updated in 2022): Sets stricter GHG and smog standards for light-duty vehicles and accelerates ZEV adoption.

• Impact: Drives electrification of all vehicle classes.

1. California Air Resources Board (CARB)

• Zero-Emission Vehicle (ZEV) Program
• Low Carbon Fuel Standard (LCFS)
• Cap-and-Trade Program
• Advanced Clean Trucks (ACT)
• Community Air Protection (AB 617)

2. California Legislative Information (Legislative Bills & Laws)

• AB 32 – Global Warming Solutions Act
• SB 375 – Sustainable Communities Act
• AB 617 – Community Air Protection
• SB 1 – Road Repair & Accountability Act

3. Office of Governor (Gavin Newsom)

• Executive Orders and climate action
• Executive Order N-79-20 (2035 ZEV Goal)

4. California Environmental Protection Agency (CalEPA)

• Website: https://calepa.ca.gov/

• Manages CARB and supports overall state climate and environmental strategy.

5. California Energy Commission (CEC)

• Website: https://www.energy.ca.gov/
• Supports EV charging infrastructure and fuel transition.
• Clean Transportation Program