Reports & Research

Wider adoption of clean-running natural gas vehicles (NGVs)—a proven technology in use worldwide—is key to helping California reduce greenhouse gas emissions, air pollution and petroleum dependence.

RNG Decarbonizing CA Fleets Annual Reports
Current: 2023 Report & Press Release
2022 Report
2021 Report
2020 Report

Economic Impacts of Deploying Low NOx Trucks Fueled by Renewable Natural Gas
Research shows that deploying heavy-duty trucks equipped with low-NOx engines that use renewable natural gas could create up to 134,000 jobs and add $14 billion to California’s economy; from consulting firm ICF, May 2017.
See the infographic.
View the ICF webinar, July 2017.

Advanced Clean Trucks (ACT) Now Plan
The Coalition’s plan for clean air, economic investment and job creation, and increased port competitiveness at the ports of Los Angeles and Long Beach, submitted February 2017. Learn more about the issues at

Ultra-Low NOx Natural Gas Engine Vehicle Evaluation Final Report, UC-Riverside

Ultra-Low NOx Natural Gas Engine Vehicle Evaluation Fact Sheet, UC-Riverside

Post-2020 Carbon Constraints: Modeling LCFS and Cap-and-Trade
Research indicates the Low Carbon Fuel Standard and cap-and-trade programs do a better job together; from consulting firm ICF, February 2017. Fact sheet summary.

Energy Information Administration
Statistics on and analysis of natural gas supply, production and use from the U.S. Department of Energy.

Game Changer technical white paper
This May 2016 report details the opportunity to widely deploy near-zero-emission heavy-duty NGVs, the potential benefits of doing so, and the challenges that must be addressed.