While renewable natural gas (RNG) produced from dairy and swine manure has received a lot of attention due to the ultra-negative carbon intensities (CIs) possible, the California Air Resources Board (CARB) recently sent a strong signal to the marketplace that RNG produced from food scraps is also very important. The signal came a couple of months ago when CARB certified the first, and to date, only food scraps-to-RNG pathway under the current version of CA-GREET 3.0, the California-centric version of Argonne National Laboratories’ GREET model. CA-GREET 3.0 is used to calculate CIs for the state’s Low Carbon Fuel Standard (LCFS).