The Carbon Cutter Project is a proposed environmental and social-impact initiative led by Engine EcoPhils, Inc. in the Philippines. The project is based on the Carbon Cutter device, a simple engine add-on intended to improve combustion efficiency in existing internal-combustion vehicles, thereby reducing fuel consumption, greenhouse gas emissions, black carbon and particulate pollution. The project focuses especially on public utility vehicles and other high-use transport vehicles where fuel savings, air-quality improvements and driver-income benefits may be achieved quickly without waiting for long-term fleet replacement by electric vehicles. The Concept Note presents the device as low-cost, quick to install, requiring no engine modification, lasting over ten years, and suitable for large-scale deployment through trained local installers.