What is the fine-grained topic of the following text: In addition, CARB addresses the claim that the LCFS regulates extraterritorially, essentially arguing that out-of-state fuel producers may choose to—but are not required to—reduce GHG emission in order to compete more effectively in California markets. Only return the topic.
CARB's response to claims about the LCFS regulating extraterritorial GHG emission reductions.