The California Low Carbon Fuel Standard (LCFS) was implemented in 2011 pursuant to the California Global Warming Solutions Act of 2006. The LCFS is a state, rather than national, program meant to reduce the carbon intensity of transportation fuels used in California. As with the RFS and CFR, so-called fuel reporting entities are required to demonstrate that they produced and blended biofuels by retiring compliance credits. However, the LCFS has often been cited as better incentivizing low-CI fuels (e.g., fuels produced from cellulosic biomass) compared to the RFS because it requires the calculation of a unique fuel CI rather than relying on reduction threshold categories (and for this reason the developers of the CFR referenced the LCFS).