On Dec. 1, 2022, the U.S. Environmental Protection Agency (EPA) announced its proposed rule under the Renewable Fuel Standard (RFS) program. For the first time, EPA establishes renewable fuel volumes and percentage standards itself instead of relying on statutorily mandated targets (referred to as the "set" rule). Further, the set rule proposes a system for generating Renewable Identification Numbers from qualifying renewable electricity ("eRIN"). In addition, EPA proposes several changes to better assist with the implementation of the existing RFS program, such as enhancing the third-party oversight provisions or updating procedures for the apportionment of RINs when feedstocks qualifying for multiple types of code are converted to biogas. EPA held a virtual public hearing on Jan. 10, 2023, for the set rule.