1. CARB, 2022. EMFAC. California Air Resources Board. https://arb.ca.gov/emfac/.
2. CARB, 2023c. Advanced Clean Trucks. California Air Resources Board (CARB). https://ww2.arb.ca.gov/our-work/programs/advanced-clean-trucks/about.
3. CARB, 2023b. Advanced Clean Fleets Regulation Summary. California Air Resources Board (CARB). https://ww2.arb.ca.gov/resources/fact-sheets/advanced-clean-fleets-regulation-summary.
4. CARB, 2023a. Overview: Diesel Exhaust & Health. California Air Resources Board (CARB). https://ww2.arb.ca.gov/resources/overview-diesel-exhaust-and-health.
5. CDC, 2002. Nitrogen Oxides. Agency for Toxic Substances and Disease Registry. https://www.atsdr.cdc.gov/toxfaqs/tfacts175.pdf.